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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Is my dad being unreasonable?

227 replies

AnimalChaos · 07/09/2026 06:37

My dad gives all his grandchildren a lump sum on their 25th birthday. The grandchildren are all in their twenties so have either received it already or will receive it very soon.

My sister has 2 children who have both received it. She also has 2 step children, one has just turned 25 and one is 23. She has been their step mum since they were 10 and 8.

My dad did not give her stepchild child the lump sum for his 25th birthday and my sister has fallen out with him over it. She thinks he is unreasonable for not giving her step children the same. My dad’s reasoning is that he wants his money to go to his biological grandchildren.

Would you say my dad being unreasonable? My sister wants me, our brother and all of our children to tell our dad he should give her stepchildren the same lump sum. I’ve said I sympathise but we can’t tell him how to spend his money and it’s a shame to fall out over it.

My brother has 2 children and a stepchild who is 22. He has said it’s up to our dad what he does with his money. He’s been his step dad since he was 13.

I have 2 children and no step children.

OP posts:
MabelAnderson · 07/09/2026 17:32

wiredandtired · 07/09/2026 15:40

That's a big amount of money and I actually think it's really cheeky to expect him to do that for children that aren't his biological family.

(And this is coming from someone who is a step child myself, as per my previous post!)

If your sister makes a big deal of this, then the kids will also see it as some kind of slight, and it will impact the relationship with their step-family.

My mum never made a big deal out of the fact that my half siblings were given big sums of money from their grandparents that I didn't get.

She would just say "Well, they are his biological grandkids and you aren't" and that actually helped me frame it in my own mind and I just brushed it off. Which was the healthy thing to do, because there would have been no changing their minds anyway!

If my mum had kicked off and said it was unfair, they should treat you the same etc., then it would have impacted how I saw the whole thing too and caused unnecessary negative feelings.

Your sister is going to create a massive fuss over something that is not going to change. She needs to stop.

Edited

I agree with this.
It isn’t unfair, it’s just normal to want to pass on money to your grandchildren. With step grandchildren any relationship with them might cease if your child got divorced from their parent. Grandchildren are always going to be related to you.

Thehop · 07/09/2026 17:33

Sister is totally unreasonable

JMSA · 07/09/2026 17:35

He is not being unreasonable.

Happyjoe · 07/09/2026 17:42

SandyHappyPerson · 07/09/2026 14:30

Would his bio grandchildren receive anything from step grandchildren's grandparents?

No, while it's not blood that makes family, it's also not uncommon to have money inherited/given through blood.

Apologies, I read it like you were answering your own question.

What did you mean with the 'no' then?

No, as in I agree,it's not blood that makes family.
Sorry, was typing as I'd speak. I missed out 'no, it's not blood that makes family'. :-) My bad.

BrezhnevsLuxuriantEyebrows · 07/09/2026 17:49

Even the amount of £75k seems quite specific to me. I'd have guessed that many in that position might have gone for £50k, and those who were absolutely loaded would probably 'round it up' to £100k; but £75k sounds to me like the highest amount that was decided as achievable for all each of the GC, based on the number that there were.

DaisyDooley · 07/09/2026 18:09

SomethingNewish · 07/09/2026 09:38

Do you see it as grabby?
I see it as her caring about her step children who have been members of her family for many years and her not seeing why they are being viewed as unequal.

Personally i think loving and caring trumps biological links any day of the week.

Giving this money is creating division, resentment, hurt and possible jealousy.

She can care about her step children
Her father is under no obligation to do so -and they are adults. Life isn’t always ‘fair’.
They may have been ‘members of the (sisters) family for many years -but that does not make them entitled to share in money of their father’s wife’s fathers!
Realistically -how much time will ‘grandad have spent with them? He didn’t know them on their formative yrs when their dad was married to their mum. He was an utter stranger to them.
It’s utterly ridiculous then entitlement people have over
a) other people’s money
b) expecting parity when it comes to step children.
They aren’t equal -so why pretend!

HisNibs · 07/09/2026 18:31

So OP's sister thinks that the step-grandchildren should be treated equally to the biological GC yet she has made no insistence that those step-GC treat him like the other GC and call him Grandpa. A silly thing I know but a double-standard none the less. It's always when money is involved that this blending family issue rears its ugly face. As pp have correctly said, if sister split from the step-children's father, OPs family would probably never hear from them again.

blondeboobshell · 07/09/2026 18:37

It’s tricky. It they had been in his life since a young age (like toddler/ young child) and lived mostly or entirely with dad and has a pretty identical relationship to him I’d say it seems mean (but still his choice) if he met them older or spent little time with them it seems less unfair

Cooshawn · 07/09/2026 18:56

I know it's his money and he can do what he wants with it.

But I can't understand families where everyone isn't just family. We've got step-relatives, half-relatives and adopted relatives in my family. But everyone is treated as equal. We welcome and embrace whole heartedly and I find it so sad that others don't.

Anarchy99 · 07/09/2026 19:08

Cooshawn · 07/09/2026 18:56

I know it's his money and he can do what he wants with it.

But I can't understand families where everyone isn't just family. We've got step-relatives, half-relatives and adopted relatives in my family. But everyone is treated as equal. We welcome and embrace whole heartedly and I find it so sad that others don't.

But there is only so much money to go round presumably so why would a step child who may have had only been on the scene a couple of years be written into the Will? And if someone marries several times, each time to people with children, what then?

The actual children get a smaller share and people who aren’t family get it.

Adoption is different because adopted children are legally part of the family but step or half siblings are just that. You could have a half sibling with whom you share a father but not actually grow up with them

Anarchy99 · 07/09/2026 19:09

Cooshawn · 07/09/2026 18:56

I know it's his money and he can do what he wants with it.

But I can't understand families where everyone isn't just family. We've got step-relatives, half-relatives and adopted relatives in my family. But everyone is treated as equal. We welcome and embrace whole heartedly and I find it so sad that others don't.

I mean it’s great for the step siblings particularly but you can’t be surprised that not everyone wants to give their money to random kids

Cooshawn · 07/09/2026 19:14

They're not random kids. They're his step grandchildren, who've been in his life over a decade.

And yes, to me it would be better to give smaller amounts than to have a 2 tier system that excludes.

BunkBedsArePeopleShelves · 07/09/2026 19:21

curious79 · 07/09/2026 06:46

It’s upsetting for the stepchildren who will now realise that they’re not actually viewed as his grandchildren. But your father is of a different era.
I have a similar situation where my father will do things for his biological grandchildren but not his two stepchildren. It can be a bit of a sticking point but then they are receiving gifts from two other sets of grandparents that my DD isn’t.
But ultimately, his money his decision

They already know they're not his grandchildren.

Offherrockingchair · 07/09/2026 19:21

Your dad has done the right thing. Your sister is grabby.

BrezhnevsLuxuriantEyebrows · 07/09/2026 19:22

So if I've understood it properly, they don't call him Grandad, because they all know that he isn't their grandad; but when it comes to him giving generous monetary gifts to his grandchildren, that includes them? Got it........

OttersOnAPlane · 07/09/2026 19:25

Cooshawn · 07/09/2026 19:14

They're not random kids. They're his step grandchildren, who've been in his life over a decade.

And yes, to me it would be better to give smaller amounts than to have a 2 tier system that excludes.

They know they aren't his grandchildren, they don't call him granddad. This is not news to them.

£75k is a massive amount of money. It's not bunging someone £50 at Christmas. Of course the OP's father reserves that kind of gift to his actual grandchildren.

THisbackwithavengeance · 07/09/2026 19:27

But presumably your sister’s stepchildren have 2 sets of grandparents themselves who may or may not give monetary gifts or an inheritance. Would we expect those grandparents to include their DGCs half siblings?

toottoot3 · 07/09/2026 19:28

Your sister could have brought this up many years ago, if everyone in family knew kids are getting money at 25, discussions around step families are difficult, but if it's important to her , she should have started a conversation a long time ago, just expecting £150k without talking about it is weird. As pp have said, she hasn't adopted them, as they have a mother already and family on that side, who could leave inheritance to them.
They don't call him grandad, has he been to their school plays? graduations? Had visits with their significant others? as in, treated the man like a grandparent? Calling someone a few times a year isn't really cutting it is it? Actually turning up, doing little jobs, showing how technology can help them is behaviour of an involved grandchild, photos of holidays and high days in frames, family stuff.
I imagine they probably have a version of that with their actual (poorer?) grandparents though, which is just like the majority of us.
Even if they have with him, it's still his choice rightly or wrongly.
Sister needs to manage her expectations, she's wanting a family group to bully her parent into something he doesn't want to do. If I were him I would have concerns around what else she feels "the family" could bully him into money wise the older he gets.

SandyHappyPerson · 07/09/2026 19:29

Anarchy99 · 07/09/2026 19:08

But there is only so much money to go round presumably so why would a step child who may have had only been on the scene a couple of years be written into the Will? And if someone marries several times, each time to people with children, what then?

The actual children get a smaller share and people who aren’t family get it.

Adoption is different because adopted children are legally part of the family but step or half siblings are just that. You could have a half sibling with whom you share a father but not actually grow up with them

But there is only so much money to go round presumably so why would a step child who may have had only been on the scene a couple of years be written into the Will?

There's no need to presume, OP has said in one of her posts that he has the money to give them, he just doesn't want to give outside his bloodline, and the step children have been in his life for 15 years..

There is also no will.. this is about cash gifts when the children turn 25.

Have you even read OPs posts?

BrezhnevsLuxuriantEyebrows · 07/09/2026 19:29

Cooshawn · 07/09/2026 19:14

They're not random kids. They're his step grandchildren, who've been in his life over a decade.

And yes, to me it would be better to give smaller amounts than to have a 2 tier system that excludes.

Giving smaller amounts is the very definition of a 2-tier system. If he gives his bio GC £75K, anything less than that is establishing a 2-tier system - whether he gave them £100, £50K or any other amount.

And if he gave them £10k, or £25K, or £50K each, what's the betting that they (and OP's sister) wouldn't be immensely grateful at his huge generosity, when they aren't even his actual GC, but they would be complaining about how 'unfair' he was in not giving them 'their full entitlement'?

Anarchy99 · 07/09/2026 19:40

SandyHappyPerson · 07/09/2026 19:29

But there is only so much money to go round presumably so why would a step child who may have had only been on the scene a couple of years be written into the Will?

There's no need to presume, OP has said in one of her posts that he has the money to give them, he just doesn't want to give outside his bloodline, and the step children have been in his life for 15 years..

There is also no will.. this is about cash gifts when the children turn 25.

Have you even read OPs posts?

Yes thank you . I was replying to the person saying that all children have equal status in her family so I was discussing that and wondering how it would work in that person’s family.

That any clearer for you?

nomas · 07/09/2026 19:47

BrezhnevsLuxuriantEyebrows · 07/09/2026 19:22

So if I've understood it properly, they don't call him Grandad, because they all know that he isn't their grandad; but when it comes to him giving generous monetary gifts to his grandchildren, that includes them? Got it........

Yeah, it’s so weird. The ‘treat them the same’ people allow no room for nuance. They are adamant DSC must get the same.

Yet real life is more complicated and differing options are ok.

A grand-parent wants to give equal money to his bio grandchildren and step-grandchildren? ✅

A grand-parent wants to only give money to his bio-children? Also ✅

SpottyPyjama · 07/09/2026 20:01

Cooshawn · 07/09/2026 18:56

I know it's his money and he can do what he wants with it.

But I can't understand families where everyone isn't just family. We've got step-relatives, half-relatives and adopted relatives in my family. But everyone is treated as equal. We welcome and embrace whole heartedly and I find it so sad that others don't.

It’s like this in my family too but I imagine it’s a lot easier when the grandparents don’t have hundreds of thousands of pounds that they want to give to their grandchildren.

OnlyUsername · 07/09/2026 20:29

BrezhnevsLuxuriantEyebrows · 07/09/2026 19:29

Giving smaller amounts is the very definition of a 2-tier system. If he gives his bio GC £75K, anything less than that is establishing a 2-tier system - whether he gave them £100, £50K or any other amount.

And if he gave them £10k, or £25K, or £50K each, what's the betting that they (and OP's sister) wouldn't be immensely grateful at his huge generosity, when they aren't even his actual GC, but they would be complaining about how 'unfair' he was in not giving them 'their full entitlement'?

Edited

Also - if this poster meant smaller amounts for all, you can't preemptively reduce the amount so it's fair. With 3 adult children you have the potential to end up with say 2 children and 2 stepchildren per household and what if one of them only gets remarried after 4 or 5 of the others have had the full 75k?

maxslice · 07/09/2026 20:38

Cooshawn · 07/09/2026 19:14

They're not random kids. They're his step grandchildren, who've been in his life over a decade.

And yes, to me it would be better to give smaller amounts than to have a 2 tier system that excludes.

Exactly this.