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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To not want SC to move in?

584 replies

Phylllis · 14/12/2025 19:48

This is uncomfortable to write but I’ll put everything down so I don’t drip feed.

I’ve been with DP for 12 years, meeting his SC when they were 2, 4 and 5; they’re now 14, 16 and 17. We have our own kids aged 7 and 5 (their mum also has a 10yo). We’ve always had them every other weekend and half the holidays. Their mum lives 1.5hrs away.

Relations with their mum have always been polite on the surface but difficult underneath. She’s never encouraged SC to apply themselves, to do homework, to stick to any hobbies or to work hard. They’d arrive with nits for months on end and not touch a book between fortnightly visits. I’d hear rumours of her badmouthing me through mutual friends. The children consistently did very badly at school. Nonetheless DP (and the schools, the SEN leads, CAFCASS and social services) never thought it bad enough to move them to us.

I’ve always said the children would always be welcome to move into ours. They’ve never wanted to.

In the past year, they’ve all repeatedly said they’re expecting to move in with us when they’re 18. They have bedrooms here and their mum is apparently planning to downsize and has told them that it’s fair that they live with their dad at that point as she’s had them until 18. The older two are in college, but barely attend, having failed all but 1/2 GCSEs, and the younger is on track for the same. The older two are exceptionally messy. They’re fundamentally nice kids but wilfully uninformed and screen-addicted, and can be entitled and demanding (as I’m sure all teenagers can be).

The thing is, I don’t want to be responsible for housing three lazy adults with zero work ethic indefinitely. Life is expensive and busy, and I don’t think it’s fair that their mum’s unilaterally decided this without discussing it. I’ve raised it to DP and he thinks it’s not ideal but that we have no other option. I don’t want it.

AIBU?

OP posts:
Mangelwurzelfortea · 15/12/2025 11:22

I think the dad does have an obligation to house them and help them get on track with their lives. It sounds like he hasn't and just blames their mum for them 'not turning out right'. Now's his chance to step up and actually do some parenting.

He's got five kids - FIVE! But only appears to feel he has any responsibility to parent two of those. This attitude really irritates me.

Poodleville · 15/12/2025 11:23

PaterPower · 15/12/2025 09:36

Sorry, haven’t RTFT, but can the two of you afford to rent a place for the SC? Not that they’ll treat it any better than your house, but at 18+ they ‘should’ be in a position to live independently.

I found it very difficult living with my SS (and I’m sure vice versa), particularly once he’d left college and wasn’t motivated to do much. Having another adult in the house 24/7 gets old, really quickly, especially if they’re not prepared to adjust their lifestyle to fit in.

But at the rate the SC are progressing, they will be paying that rent forever or just 'making them homeless' further down the line, when they'll likely be completely embedded in their lazy habits.

It's a sad situation but it sounds as though your DH won't be enforcing the boundaries that would need to be in place to have the remotest chance of this working. It's not only wrong that should fall to you, but you also won't be able to be effective in changing their behaviours if dad's not on board. They already disrespect you by the sound of things.

Let this be their first wake up call that not making an effort in life has consequences. Yes it's not their fault they had a shit custody situation, but you won't be doing them any favours if you enable the path they're on further.

And someone has to think of your kids.

Mangelwurzelfortea · 15/12/2025 11:25

jellybellyready · 15/12/2025 11:22

I wouldn't be allowing this and i would be setting them all straight NOW.

The mum doesn't just get to toss them out at 18 and say they will be with you.

An if they do move in... You wont be moving, they will need to get jobs, no food in rooms, they will be sharing rooms, your own kids get a room each, it wont be a life of luxury.

If they dont like it, they can leave. its not a doss house.

But legally she can do exactly that. She will have been paying the lion's share of the expenses of looking after them, including housing them, for years. She's right, it IS their dad's turn now. She won't be getting any help for them once they've turned 18 and she wants to downsize. Why is looking after THEIR kids just her problem and not their dad's?

Lmnop22 · 15/12/2025 11:27

Is there no possibility of staying with your DH but living separately for a few years whilst his kids get on their feet?

If the alternative is you leaving anyway then it looks like in no scenario are you keeping your family home so could you sell and get two smaller homes?

Or offer some financial support to have SC’s living alone at 18? They’ll be entitled to sign on and will get housing paid etc so maybe if he reverts the money he paid his ex for child support for each of them to supplement UC they could start looking for work etc?

IAmKerplunk · 15/12/2025 11:27

usedtobeaylis · 15/12/2025 11:21

It's very, very clear that you don't want them to move in and I think it's ok to feel like that. It would be different if they had moved in as children, or even if there had been something nearer a 50/50 arrangement - but that's not the case. They are 3 adults and that is a very different kettle of fish. It will upset the rhythm you have with the children who are still young and seemingly have their lives on a different trajectory to their older siblings.

There could be a small opportunity to change that trajectory for the oldest one - but it's clear nobody is actually going to do the work and support for that.

So basically, it looks like your options are to move them in and try somehow to make it work, or move them in and you leave with the youngest. This is not something that should be falling on your shoulders while their father takes a back seat. Prioritise yourself and the youngest children.

They are not adults! They are 14,16 and 17 and are already being prepped by their mum that at 18 they will no longer have a home with her. Regardless that they will be adults when she kicks them out (1 by 1 over a period of a few years) they are having to deal with that knowledge now - and however they present in their behaviour this is going to have a massive impact on them mentally, emotionally and what life choices they make. The youngest is also going to have to watch her oldest sibling kicked out and see how they manage, followed a year or so later by her next oldest sibling kicked out and see how they do - all the time knowing this is coming for her too. How can anyone say this is ok?

IAmKerplunk · 15/12/2025 11:29

Lmnop22 · 15/12/2025 11:27

Is there no possibility of staying with your DH but living separately for a few years whilst his kids get on their feet?

If the alternative is you leaving anyway then it looks like in no scenario are you keeping your family home so could you sell and get two smaller homes?

Or offer some financial support to have SC’s living alone at 18? They’ll be entitled to sign on and will get housing paid etc so maybe if he reverts the money he paid his ex for child support for each of them to supplement UC they could start looking for work etc?

I think living separately from dp is the best option for his dc and op. It won’t happen because dp will not put his children first and never has done.

kittywittyandpretty · 15/12/2025 11:30

DonicaLewinsky · 15/12/2025 11:19

Nope, it's still irrelevant because UC entitlement varies by area as well as housing tenure. The OP has given you no information at all to ascertain where they live and what the thresholds would be.

This comes up all the time on MN, people who think that because they aren't entitled to any UC they can state that someone in entirely different circumstances also wouldn't be, despite not having enough information to make a calculation. They're wrong. That's not how UC works.

It is correct that the threshold at which support is unavailable is not very high at all if you don't have any disabilities. You still cannot make a blanket claim that these 18 year olds would exceed it, based on the limited information we have.

Universal credit is exactly that universal. It doesn’t vary by area at all. You’re talking nonsense.

Once entitlement has been established they might receive more if they lived in London but the entitlement threshold is the same.

the7Vabo · 15/12/2025 11:30

usedtobeaylis · 15/12/2025 11:21

It's very, very clear that you don't want them to move in and I think it's ok to feel like that. It would be different if they had moved in as children, or even if there had been something nearer a 50/50 arrangement - but that's not the case. They are 3 adults and that is a very different kettle of fish. It will upset the rhythm you have with the children who are still young and seemingly have their lives on a different trajectory to their older siblings.

There could be a small opportunity to change that trajectory for the oldest one - but it's clear nobody is actually going to do the work and support for that.

So basically, it looks like your options are to move them in and try somehow to make it work, or move them in and you leave with the youngest. This is not something that should be falling on your shoulders while their father takes a back seat. Prioritise yourself and the youngest children.

What about the OP’s role in this? OP got involved with DH when he had very very young children and three at that. His priority should have been those children. Then she has two more with him when it’s seems fairly clear he’s not a brilliant dad.

To be fair to her it sounds as it’s she has made an effort with the children. But there isn’t nearly enough recognition of what DH’a responsibilities were. He let those children down many times including by having more children when he sounds like he is only able to be the back-up parent when his first kids don’t have a decent primary parent.

It isn’t extraordinary at all for young adults to live with their father. Of course the OP won’t like it I wouldn’t either. But I’d also never have childen with a man who had 3 already for this reason.

JudgeJ · 15/12/2025 11:31

Mangelwurzelfortea · 15/12/2025 11:25

But legally she can do exactly that. She will have been paying the lion's share of the expenses of looking after them, including housing them, for years. She's right, it IS their dad's turn now. She won't be getting any help for them once they've turned 18 and she wants to downsize. Why is looking after THEIR kids just her problem and not their dad's?

She will be contributing support for them or cutting them off altogether? No doubt if they do turn their lives around once they are living in a caring household she will expect to be on the front row for any awards ceremonies with their step mother staying away as it not be her business!

DonicaLewinsky · 15/12/2025 11:34

kittywittyandpretty · 15/12/2025 11:30

Universal credit is exactly that universal. It doesn’t vary by area at all. You’re talking nonsense.

Once entitlement has been established they might receive more if they lived in London but the entitlement threshold is the same.

Edited

Feast your eyes on this. Local housing allowance rates, by area. It is my solem duty to inform you that they are not all the same!

https://www.gov.uk/government/publications/universal-credit-local-housing-allowance-rates-2025-to-2026

Universal Credit Local Housing Allowance rates: 2025 to 2026

Monthly Universal Credit Local Housing Allowance rates for England, Scotland and Wales from 2025 to 2026.

https://www.gov.uk/government/publications/universal-credit-local-housing-allowance-rates-2025-to-2026

constantnc · 15/12/2025 11:34

14, 16, 17 years old....you have time.

Start by deciding your dd need their own rooms, and the sc can share when they spend the 2/14 days with you.

Pocket money if given now relate to chores done. Put up a clear schedule of chores with a weekend rosta for all the children. No chores no £.

Tell dp he either steps up and starts parenting his sc or you up and leave.

And mean it. No way would I be taking these adults on.

kittywittyandpretty · 15/12/2025 11:35

DonicaLewinsky · 15/12/2025 11:34

Feast your eyes on this. Local housing allowance rates, by area. It is my solem duty to inform you that they are not all the same!

https://www.gov.uk/government/publications/universal-credit-local-housing-allowance-rates-2025-to-2026

The local housing allowance rates have no influence on whether you would be entitled to universal credits.
They make a difference once entitlement has been granted as to the amount of money that one might receive but it Has no bearing on the original entitlement

usedtobeaylis · 15/12/2025 11:36

IAmKerplunk · 15/12/2025 11:27

They are not adults! They are 14,16 and 17 and are already being prepped by their mum that at 18 they will no longer have a home with her. Regardless that they will be adults when she kicks them out (1 by 1 over a period of a few years) they are having to deal with that knowledge now - and however they present in their behaviour this is going to have a massive impact on them mentally, emotionally and what life choices they make. The youngest is also going to have to watch her oldest sibling kicked out and see how they manage, followed a year or so later by her next oldest sibling kicked out and see how they do - all the time knowing this is coming for her too. How can anyone say this is ok?

The fact that they will be adults when they move in is the whole point. That's what the whole thing is based on. Jesus wept.

jellybellyready · 15/12/2025 11:37

Mangelwurzelfortea · 15/12/2025 11:25

But legally she can do exactly that. She will have been paying the lion's share of the expenses of looking after them, including housing them, for years. She's right, it IS their dad's turn now. She won't be getting any help for them once they've turned 18 and she wants to downsize. Why is looking after THEIR kids just her problem and not their dad's?

Legally he can also say No too...

They wanted the kids years ago, she said no, she just doesn't want them when they turn 18 as she will stop getting benefits for them and start costing her money. Grim, just using her kids to get benefits.

If she wants to kick them out as adults, that's on her. That doesn't mean the OP has to open her doors to lazy adults.

DonicaLewinsky · 15/12/2025 11:41

kittywittyandpretty · 15/12/2025 11:35

The local housing allowance rates have no influence on whether you would be entitled to universal credits.
They make a difference once entitlement has been granted as to the amount of money that one might receive but it Has no bearing on the original entitlement

And yet you still haven't provided any source for your claim that these young adults will definitely only get their wages, because after all you didn't get UC. Turn2Us, who know better than you, take a different view.

The lesson to take here is that rather than rely on internet claims from someone who doesn't understand that their UC assessment has no bearing on anyone else, it's best to go to the professionals. There are decent calculators that can be used and organisations that know what they're talking about.

Mangelwurzelfortea · 15/12/2025 11:45

jellybellyready · 15/12/2025 11:37

Legally he can also say No too...

They wanted the kids years ago, she said no, she just doesn't want them when they turn 18 as she will stop getting benefits for them and start costing her money. Grim, just using her kids to get benefits.

If she wants to kick them out as adults, that's on her. That doesn't mean the OP has to open her doors to lazy adults.

Well neither parent 'has' to look after THEIR OWN CHILDREN once they turn 18. But, morally, I'm sure we agree that somebody has to - and why is the assumption that it has to be the mum? No doubt the dad has paid the bare minimum for them as well as doing what sounds like the bare minimum of parenting.

I don't have much sympathy for stepparents. The OP married this man, knowing he already had three kids, and, like nearly every other stepparenting thread on MN, is now moaning at the idea of having any more than the absolute bare minimum to do with them.

kittywittyandpretty · 15/12/2025 11:45

DonicaLewinsky · 15/12/2025 11:41

And yet you still haven't provided any source for your claim that these young adults will definitely only get their wages, because after all you didn't get UC. Turn2Us, who know better than you, take a different view.

The lesson to take here is that rather than rely on internet claims from someone who doesn't understand that their UC assessment has no bearing on anyone else, it's best to go to the professionals. There are decent calculators that can be used and organisations that know what they're talking about.

The calculators are often incorrect as many people would allude to on here and other Internet forums

The facts are available for all to find on Google.
Single adults with two working arms and legs will receive absolutely sod support Outside of their family.

The original poster has made no reference to disabilities, She’s now no mention of them being in care at any stage. And therefore we can all conclude they have their families or nothing.
And the outcome of their lives will be reflected accordingly.

Not sure why you want to die on this particular Hill but Merry Christmas to you. I hope you’ve made a donation to crisis as your penance.

CatchTheWind1920 · 15/12/2025 11:49

I don't think you're being unreasonable at all.

That being said, it sounds like moving in with you and their dad, with firm clear boundaries and expectations would do them the world of good. With the understanding of rules and boundaries are ignored, they move out.

DonicaLewinsky · 15/12/2025 11:51

kittywittyandpretty · 15/12/2025 11:45

The calculators are often incorrect as many people would allude to on here and other Internet forums

The facts are available for all to find on Google.
Single adults with two working arms and legs will receive absolutely sod support Outside of their family.

The original poster has made no reference to disabilities, She’s now no mention of them being in care at any stage. And therefore we can all conclude they have their families or nothing.
And the outcome of their lives will be reflected accordingly.

Not sure why you want to die on this particular Hill but Merry Christmas to you. I hope you’ve made a donation to crisis as your penance.

They're more likely to be correct than someone who thinks their own personal UC calculation can be applied to any random member of the population, shows no understanding that owners and renters are treated differently when it comes to benefits and reckons that googling something must make it true. Talk about Dunning Kruger!

Again, get good advice on benefit entitlements, and do not listen to the vague and poorly informed insistence of someone who has clearly demonstrated they don't understand even the basics.

AMillionMugsNoTeabags · 15/12/2025 11:55

CatchTheWind1920 · 15/12/2025 11:49

I don't think you're being unreasonable at all.

That being said, it sounds like moving in with you and their dad, with firm clear boundaries and expectations would do them the world of good. With the understanding of rules and boundaries are ignored, they move out.

Sure. But who’s creating/enforcing those boundaries? Nothing in OPs posts suggests that Dad is doing anything more than blowing in the wind and agreeing with the last person he spoke to (including kids).

NearlyMonday · 15/12/2025 11:55
the7Vabo · 15/12/2025 11:55

Mangelwurzelfortea · 15/12/2025 11:45

Well neither parent 'has' to look after THEIR OWN CHILDREN once they turn 18. But, morally, I'm sure we agree that somebody has to - and why is the assumption that it has to be the mum? No doubt the dad has paid the bare minimum for them as well as doing what sounds like the bare minimum of parenting.

I don't have much sympathy for stepparents. The OP married this man, knowing he already had three kids, and, like nearly every other stepparenting thread on MN, is now moaning at the idea of having any more than the absolute bare minimum to do with them.

Edited

I think to be fair the OP does seem to have made an effort to a point.

But overall I find MN’s full of “step parents can’t win”, they can’t, nor should they expect to. If you marry a man who already has children it is not going to be easy. Why not pick a man who doesn’t have kids and keep it straightforward rather than have kids with a man who has 3 and not want to deal with the messy bits.

His kids are not OP’s priority but they should be his. And he has grossly complicated the situation by having 2 more when his first kids lives are mess. Not uncommon and v v sad.

kittywittyandpretty · 15/12/2025 11:59

DonicaLewinsky · 15/12/2025 11:51

They're more likely to be correct than someone who thinks their own personal UC calculation can be applied to any random member of the population, shows no understanding that owners and renters are treated differently when it comes to benefits and reckons that googling something must make it true. Talk about Dunning Kruger!

Again, get good advice on benefit entitlements, and do not listen to the vague and poorly informed insistence of someone who has clearly demonstrated they don't understand even the basics.

👍
Why you would want to push this responsibility onto the taxpayer anyway is a whole separate thread when they have a father who is apparently looking forward to enjoying early retirement at the expense of five children that needs supporting.

MO0N · 15/12/2025 12:03

SparklyDanceMum · 15/12/2025 07:54

Although my SC are a bit younger than yours and it’s not been officially said, I suspect this is their mum’s plan also and is genuinely one of my biggest fears - there is no way I could ever accommodate this, their upbringing is as far apart as I could even write, so there will be not a chance this will ever happen, my relationship would end before I could allow this for me and my own DC. You need to think very seriously now and have those difficult conversations with your DP - I feel for you, I really do

I have to agree with this.
It looks to me as if OP's partner's ex has deliberately weaponized the children so that they can sabotage the life that he has built with OP

jellybellyready · 15/12/2025 12:07

Mangelwurzelfortea · 15/12/2025 11:45

Well neither parent 'has' to look after THEIR OWN CHILDREN once they turn 18. But, morally, I'm sure we agree that somebody has to - and why is the assumption that it has to be the mum? No doubt the dad has paid the bare minimum for them as well as doing what sounds like the bare minimum of parenting.

I don't have much sympathy for stepparents. The OP married this man, knowing he already had three kids, and, like nearly every other stepparenting thread on MN, is now moaning at the idea of having any more than the absolute bare minimum to do with them.

Edited

Making assumptions the father has paid the bare minimum when you actually dont know that.

Hes offered to have the KIDS full time but the mum doesn't want that as she cant scrounge via benefits without them.

It also sounds like the Mum has done bare minimum parenting as they are all failing.

No one really cares if you have sympathy for SP either, its not relevant.