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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

90 year old grandma and cousins’ stepchildren

461 replies

Unlisted · 30/01/2026 12:53

My grandma is 90 and there will be a massive afternoon party for just two hours in a hotel paid for my mum, aunt and uncle.

All her descendants, their partners plus nieces and nephews without partners and one surviving sibling and two of her surviving cousins, one with husband. The surviving sibling and cousins will have one of their children with them given their advanced age.

Grandma does not want my cousin’s two stepchildren invited , they are teenagers who live almost exclusively with their mother.

Cousin has said her husband doesn’t want her to go with her elder child and their joint child.

Elder child’s dad has stepped in and insists that he will take child himself and sit in bar to wait for him.

My cousin, brother of this cousin is coming home from Japan for this.

My aunt has said she will make sure their joint child will be there as well.

What for you all think about this? Is cousins’ husband unreasonable.

OP posts:
THisbackwithavengeance · 31/01/2026 05:29

Are the teens bothered? My DCs sometimes get invited to my DH’s family dos, sometimes they’re not. Either way they’re not fussed tbh. It’s not personal.

RandomSuitors · 31/01/2026 06:32

You don’t automatically become ‘siblings’ with someone just because your parent shacks up with them. I think the people saying this cannot have been the child in a stepfamily. Because it just doesn’t feel or function like that, no matter how much the happy couple may want it to. I can’t think of two people I’d less like to see than the children of the woman my dad made me live with.

CommonlyKnownAs · 31/01/2026 06:58

AnnieLummox · 31/01/2026 01:36

On all threads of this nature, I wonder how much of it is actually about the kids and how much is about the supposed adults stamping their feet and squalling because they didn’t get what they wanted; because they want their little bit of recognition and to be made to feel “special”.

Meanwhile the kids are saying “You want us to go to a party for Sarah’s gran? Really? Is she still alive?!”

Oh, that definitely exists with some of them. Not all, of course. But there are examples of this genre where the family is actually not particularly blended and/or the kids in question don't give a shit, but one of the adults has had their nose put out of joint.

Blushingm · 31/01/2026 07:29

Unlisted · 30/01/2026 13:10

My grandma is a lovely woman hence her family arranging this party for this milestone.

She is worried he will push them into significant photos.

She wants just family, cousin’s husband has form for trying to push his kids forward. He actually brought them to church for mutual cousin’s wedding and even brought them back to evening uninvited.

If he’s annoyed he shouldn’t try and guilt his wife and stop his stepson and younger son from going.

Their absence from photos will be heartbreaking to a 90 year old woman.

But they are family - arent they?

Blushingm · 31/01/2026 07:32

AnnieLummox · 30/01/2026 23:42

But how far do you take it? Inviting a spouse is standard. But the relatives of the spouse? I invite my BIL to family parties, because he’s my sister’s partner, but I don’t invite HIS sister or his mother. There’s a line.

They’re not just relatives of the spouse, they’re the children of the spouse

diddl · 31/01/2026 07:37

AnnieLummox · 30/01/2026 23:35

But that was your bloody wedding!

Why would you say to your mother “We really want to throw you a special party to celebrate your 90th birthday - but we’re going to invite people you actively don’t want there, because we’re paying, so you can go fuck yourself”?

Well tbh if hosts really wanted them there I'm sure that my mum would have understood for a meal for a couple of hours.

I don't really see it as a "go fuck yourself".

In Op's case it sounds as if people would make sure she didn't have to seem them much/at all & will make sue that she gets the photos she wants.

Wirrrrrral · 31/01/2026 07:42

AnnieLummox · 30/01/2026 23:42

But how far do you take it? Inviting a spouse is standard. But the relatives of the spouse? I invite my BIL to family parties, because he’s my sister’s partner, but I don’t invite HIS sister or his mother. There’s a line.

This is totally disingenuous. Of course there is a line about extended family of a spouse - but in this case it’s not extended family of a spouse - it’s immediate family of the spouse - children and immediate family of the grand daughter - her stepchildren …. and this nasty small minded family (who are still bleating on
that these children at the age of 8 availed themselves of the ‘the free bar’ and the buffet’) now want to split the CHILDREN in this family so ‘blood’ can attend but ‘married in step CHILDREN’ can’t - why don’t they go all the way and excude all the spouses? I wonder where they would draw the line if any children were adopted or fostered.

Really quite telling and gross that at a spectacular milestone celebrating with an intergenerational party - some nasty adults have this ugly focus on excluding children. I assume it’s because they dislike the cousins spouse and want to punish him - so are taking it out on the grand daughter by splitting up the children in her young family. Grim.

LadyGAgain · 31/01/2026 08:08

As it’s a professional photographer have some with them in and some without. Such drama. And for the record it sounds like you’ve already made up your mind despite the majority saying YABU. Grandma might be a wonderful old lady but this isn’t wonderful old lady behaviour. Your cousins husband is clearly going about things the wrong way but shows his desperation for his children to be integrated. Why are they with their mum most of the time? Was this his decision? Anyway. Happy 90th to your grandma. Shame it’s tainted with her leaving out two children.

TheignT · 31/01/2026 09:49

SPQRomanus · 30/01/2026 23:32

Presumably the spouses have impregnated/ given birth to the blood family descendants whom she wants at the party. That's very different from the two entirely unrelated step great-grandchildren.

So if one of the cousins didn't want/couldn't have children then their spouse isn't invited? I didn't think it could get nastier and then it does.

Tryagain26 · 31/01/2026 10:21

Unlisted · 30/01/2026 17:41

RedToothBrush

So you think it’s acceptable for someone to pick up the bill for your kids or you would be happy to have at least £50 added to your bill to pay for your grandchild’s half siblings?

Yes just as I would have to pick up the bill for my children's partners, and my nephew's partner's. They are family

AnnieLummox · 31/01/2026 10:31

diddl · 31/01/2026 07:37

Well tbh if hosts really wanted them there I'm sure that my mum would have understood for a meal for a couple of hours.

I don't really see it as a "go fuck yourself".

In Op's case it sounds as if people would make sure she didn't have to seem them much/at all & will make sue that she gets the photos she wants.

I just find it very odd that you would throw a party in someone else’s honour, but invite the guests YOU want there. It’s like these people who buy “presents” for spouses or the wider family that they actually want for themselves.

AnnieLummox · 31/01/2026 10:32

Blushingm · 31/01/2026 07:32

They’re not just relatives of the spouse, they’re the children of the spouse

Children were relatives the last time I checked.

diddl · 31/01/2026 10:40

AnnieLummox · 31/01/2026 10:31

I just find it very odd that you would throw a party in someone else’s honour, but invite the guests YOU want there. It’s like these people who buy “presents” for spouses or the wider family that they actually want for themselves.

I know what you mean. I was thinking more about this particular case where a fall out might be prevented.

So perhaps more a case of diplomatic to invite?

Forgot to say that my wedding example wasn't really a good one!

I'm torn between it being her birthday & in this case would it really matter.

Especially if it's the pics that are important & she can surely have some without them in.

It also does seem to be the dad driving it.

Without his input the teens would likely decline if invited anyway.

AnnieLummox · 31/01/2026 11:04

LeBonBon · 30/01/2026 15:51

If your cousin and her DH have a shared child, then these two unrelated children will be (should be) in each others' lives forever. So not entirely disconnected. Seems mean to exclude them.

If someone is on hand to make sure "dear" Granny gets the photos she wants - i.e. she has a list and clear instructions on who she wants in each, I don't know how your cousin's DH can override it? If you can't do it, could someone organise this and act as some kind of enforcer - clip board style? Not hard to do and probably a lot less awkward and divisive than excluding kids altogether.

Doubt a couple of teens would be fussed about being in formal pictures anyway, but it would be sad to miss a party.

I can’t believe anybody thinks the stepchildren going to the party, but asking the photographer to take a picture that includes everyone except them, is a better idea than not inviting them at all.

If the kids don’t live with their father, he doesn’t even have to mention that he went to a party for his wife’s grandmother. If he does mention it, he doesn’t have to make a big thing of it - as many posters have said, it will have limited appeal to two teenagers. But if, as some people suggest, the stepchildren are invited but “discreetly” excluded from the photos, that really is sending a message that they’re there under sufferance. Why make it so obvious when it would be much easier not to invite them?

BowstotheSettingSun · 31/01/2026 11:15

AnnieLummox · 30/01/2026 23:50

And? The OP’s grandmother doesn’t feel the same.

And so then granny may not get to have everybody at her party that she does want because people are allowed to decline and keep all their children at home.

AnnieLummox · 31/01/2026 11:16

MrFluffyDogIsMyBestFriend · 30/01/2026 16:09

OP if someone's heartbroken at seeing someone unrelated in a photo then they're a bit mental and if you can't see that I'd say you're a sandwich short of a picnic.

First of all, OP didn’t say that. She said the actual great-grandchildren would feel heartbroken to realise they weren’t in the photo because their father had insisted all his children were included or none of them.

Secondly, why is it so ridiculous to be upset about a photograph, but not being invited to a party for someone you barely know is going to scar you for life?

AnnieLummox · 31/01/2026 11:17

BowstotheSettingSun · 31/01/2026 11:15

And so then granny may not get to have everybody at her party that she does want because people are allowed to decline and keep all their children at home.

So she should be blackmailed into having them there?

AnnieLummox · 31/01/2026 11:53

TheCurious0range · 30/01/2026 16:59

This. My grandma is also my step grandma and we are the closest of all of her grandchildren

And it’s lovely that you have that relationship. No one is trying to suggest you can’t choose to have that relationship. But that simply isn’t going to be everyone’s experience. And it doesn’t have to be the other extreme of outright hostility either.

I get on with my BIL. He’s a good husband to my sister and good father to my nephew. But I don’t gush about him being like the brother I never had, because I just don’t feel that way (and I’m guessing he doesn’t either). And that’s fine.

AnnieLummox · 31/01/2026 11:59

RedToothBrush · 30/01/2026 17:23

So Cousin and child are invited. And he and the step kids are not invited.

Yeah I'd go just to piss off the petty fuckers who keep not inviting his family in full. If his FIL is being a dick in not inviting them then tbh I think he's within his rights to make a point.

Maybe if FIL invited the kids he wouldn't make the same point.

The cousins family is her husband, step kids and kid. It is not just her own child.

Funny how him making a point doesn’t involve refusing to go, but actually involves free meals for himself and his kids…

loislovesstewie · 31/01/2026 12:15

AnnieLummox · 31/01/2026 11:53

And it’s lovely that you have that relationship. No one is trying to suggest you can’t choose to have that relationship. But that simply isn’t going to be everyone’s experience. And it doesn’t have to be the other extreme of outright hostility either.

I get on with my BIL. He’s a good husband to my sister and good father to my nephew. But I don’t gush about him being like the brother I never had, because I just don’t feel that way (and I’m guessing he doesn’t either). And that’s fine.

I'm going to say it again. I got on well with my stepmother. I liked her siblings, but they weren't my relatives. I already had enough of them in my late mother's family. My half sister knew that my mother's siblings weren't her aunties and uncles. No one was upset.

InterIgnis · 31/01/2026 12:33

Wirrrrrral · 31/01/2026 07:42

This is totally disingenuous. Of course there is a line about extended family of a spouse - but in this case it’s not extended family of a spouse - it’s immediate family of the spouse - children and immediate family of the grand daughter - her stepchildren …. and this nasty small minded family (who are still bleating on
that these children at the age of 8 availed themselves of the ‘the free bar’ and the buffet’) now want to split the CHILDREN in this family so ‘blood’ can attend but ‘married in step CHILDREN’ can’t - why don’t they go all the way and excude all the spouses? I wonder where they would draw the line if any children were adopted or fostered.

Really quite telling and gross that at a spectacular milestone celebrating with an intergenerational party - some nasty adults have this ugly focus on excluding children. I assume it’s because they dislike the cousins spouse and want to punish him - so are taking it out on the grand daughter by splitting up the children in her young family. Grim.

And? It’s not the spouses party. The spouse is being invited as her grandchild’s plus one. The cousin’s children are being invited as grandchildren in their own right.

His children are no more the grandmother’s family than his mother is.

ittakes2 · 31/01/2026 12:44

I’m sorry I find this confusing … but I think you are basically saying your cousins husbands children (ie your cousins step kids) from before he met your cousin are not invited to the family function … just your cousins and her husbands biological child? And in the past the husband has handled this by forcing his kids to be allowed to attend family functions?

pinkyredrose · 31/01/2026 12:46

The hysteria on this thread! Would the kids even know thier stepmother's grandma if they passed her on the street?

CorvusPurpureus · 31/01/2026 12:58

AnnieLummox · 31/01/2026 11:04

I can’t believe anybody thinks the stepchildren going to the party, but asking the photographer to take a picture that includes everyone except them, is a better idea than not inviting them at all.

If the kids don’t live with their father, he doesn’t even have to mention that he went to a party for his wife’s grandmother. If he does mention it, he doesn’t have to make a big thing of it - as many posters have said, it will have limited appeal to two teenagers. But if, as some people suggest, the stepchildren are invited but “discreetly” excluded from the photos, that really is sending a message that they’re there under sufferance. Why make it so obvious when it would be much easier not to invite them?

Lots of different permutations of photos, including one with just direct descendants & no in laws/partners/steps. Not Photo A, everyone, followed immediately after by Photo B everyone except 'you two brats...off you fuck!'.

Very much doubt two teenagers would even glance up from their phones, once they'd been in the 'everyone' photo & the 'cousin + husband + all their kids with Granny' one, & the photographer had moved on to doing various other groupings.

ittakes2 · 31/01/2026 13:02

Your cousin (mother of step kids) seems quite passive in all this.
I agree with there can be a photo of desedents only - excluded partners and step kids … doubt two teens who don’t see the grandma will care