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How can I turn down uninvited siblings politely from nieces 9th birthday party?

383 replies

ThePetiteMermaid · 25/05/2026 13:29

I changed my user name for this and some details as it’s pretty outing (and a long post sorry - trying not to drip feed) but I need advice please.

My niece has a birthday party coming up this week and my Dsis was originally going to book a party package doing an activity with food and party bags included.
It worked out as far too expensive for her as a package because you need a minimum amount of guests to book and so she decided to take a smaller friend group and pay for them to do the activity individually and then to take them to a fast food place to eat.
She also decided instead of party bags to just do cake to save money and thought the kids might not expect one after an expensive activity and might be too old to be bothered anyway at 9 years old.

My Dsis became ill unexpectedly and had to have an operation which means she’s unable to host the party and her DH is at work so she asked me to do it.
I didn’t want my niece disappointed so have taken over the WhatsApp group to finalise things and I have a friend to help on the day.

I have had two messages from two mums basically saying siblings need to attend as it’s school holidays and not really asking but telling me. There hasn’t been any money offered but one mum put “Lucy isn’t expecting a party bag but I’m hoping you will be able to provide a meal for her”.

The other mums message was a bit more polite saying “Katy can’t come without her sister Jess as I have no one to look after Jess, I hope this isn’t an issue as Katy is really excited about coming to celebrate Amy’s birthday”.

I can’t believe how rude and cheeky this is, surely they aren’t expecting my Dsis to pay for the extra kids?
Even if the parents do offer to pay I don’t want to be responsible for two extra kids who will probably be a different age category anyway.

I want to reply saying that the party numbers are final and we can’t stretch to additional guests financially and also I don’t think two is enough people to safeguard extra children.
I wasn’t sure if I should include the financial part as they might have been expecting to pay for the siblings on arrival.

I was hoping for some help please in writing a response that is polite but firm, my Dsis said one of the mums will possibly try to drop the sibling off anyway as she has form for this.

I don’t have children so feel uncomfortable dealing with this and I was really surprised to hear it’s a common request, I can understand if it was a cheaper venue like a hall party when the kids were younger but not for an expensive activity!

I’m also wondering what to say to kids if they are expecting party bags. With one mum mentioning them in the text I’m thinking others might expect them and kids might ask for one. I don’t have the money or time to provide them and wouldn’t have a clue what to put in them, I don’t want to stress my Dsis when she’s ill and already fretting about pleaving me in charge, surely a slice of cake is enough?!

It would be helpful if someone could also give me a suggestion of what to say if someone does attempt to drop off a sibling please.

I’m ND and not the best with confrontation or awkward conversations and I’m really pissed off I’ve been put in this position and my niece will be really upset if the two girls can’t attend because we can’t include siblings although that maybe can’t be helped.
I wouldn’t have been as keen to volunteer to help if if known I’d be dealing with these cheeky requests and worrying about bloody party bags!

I’ve posted quickly but I have to go out now so I won’t be able to respond much until later.
I just thought I’d better add this in anticipation of people asking “where has the OP gone!”
I will update after I’ve hopefully handled the situation tactfully!

OP posts:
CloudPop · 26/05/2026 07:39

lazyarse123 · 25/05/2026 13:44

Why do people always say they're struggling for childcare? What would they do with the kids if there was no party, especially as it's drop and go at this age?

Exactly!

Mumandcarer80 · 26/05/2026 07:35

ThePetiteMermaid · 26/05/2026 00:38

I’ve read through the replies and there have been some great suggestions so I’ve combined a few and decided to go for this and put it in the group chat:

“Thank you for everyone who has RSVP’d for Amy’s party, she is looking forward to seeing everyone and drop off time is at 11.30 with pick up time to be confirmed.

I’m very sorry to those who have asked but unfortunately we cannot accommodate siblings as we had only budgeted for the invited children, I don’t feel comfortable supervising extra children and Amy would prefer just to have the friends she has invited.
I’m sorry if that inconveniences anyone, if you do wish to bring any siblings then you can pay for their entry separately but will need to stay to supervise them, they cannot be left with the party group and if you want to join us afterwards at KFC the same applies.

If anyone is struggling for transport just let me know because we might be able to help.
Thank you for making Amy’s day special”

I’m not sure if it’s a bit waffley but after some of the horror stories people have posted I wanted to make it crystal clear that we won’t be looking after any extra siblings who are just left to join the party and I wanted to make extra sure people know it’s fine to drop off!

I think it’s a good idea to post in the chat as based on others experiences I might get people who don’t bother to even ask and will just bring siblings and leave them.
I wish I had the balls to do what a pp posted and just leave any uninvited kids in reception but I don’t think my Dsis would be happy at me ruining her reputation!

I can see some people feel strongly about party bags and think it’s an important part of the party and will provide “core memories” but I’d hope that the party will be more exciting then a bag of tat and will provide some wonderful memories!
Maybe it’s because I don’t have kids and I don’t remember being that excited about party bags when I was one but it just seems like more faff and expense I’ll get some little bags of haribo as suggested and stick them in with the cake that will of course be wrapped in a napkin and inevitably end up getting sat on, squashed or just the icing picked off because that’s my most common childhood memory of the end of parties 😂.

I am going to sound really old now but when did this change where it became so common to bring siblings to parties? I don’t remember any coming to any birthday parties I went to as a child in the 90’s.

It’s been a long day so I’m going to bed and will post tomorrow and update if I need any more help and advice, I have a feeling my message might cause some controversy.

A lot do sweetie cones now. When they get a bit older they don’t bother with the crappie toys in the bags anyway. You can buy them pre-made or make your own up cheap.

Wonderfulstuff · 26/05/2026 07:29

I always say in invites - 'due to numbers we are unable to accommodate siblings'.

This is learnt after our first big party where one woman turned up not just with siblings but also cousins and one random (her Ford galaxy was packed to the rafters). Luckily I had enough food to go round and some spare party bags but I would have felt bad for children leaving a party without one as the cheeky f**ckery was not their fault.

On that topic, it's not really your problem OP but ime 9 year olds still love party bags. In fact my DC takes huge pride in giving 'good' party bags and spends time planning them.

Hope your Dsis is doing better and you survive!

Iocanepowder · 26/05/2026 07:28

EmpressaurusKitty · 26/05/2026 07:24

You’re a terrific aunt, OP.

Just about the sweets - most Haribo contain pork gelatin so probably safest to look for a veggie option.

The strawberry haribo are vegetarian

EmpressaurusKitty · 26/05/2026 07:24

You’re a terrific aunt, OP.

Just about the sweets - most Haribo contain pork gelatin so probably safest to look for a veggie option.

Strandas · 26/05/2026 07:06

floatinginacoolpool · 26/05/2026 00:53

You were one of a number of people suggesting by nine everyone drops their children off. I was explaining why there are good reasons why some people don't even at that age.

I appreciate that its a side issue but it was frustrating seeing people imply it's weird or abnormal when from my perspective it is hugely unfair to asks a party host to also be responsible for serious medical issues

I asked a question as mine aren’t nine yet. I don’t remember saying it was abnormal? I think when most people are talking about nine year olds parties being drop and go, they obviously don’t mean those with food allergies or special needs. I have not seen anyone imply that it is weird or abnormal for a parent with a child who has particular needs to stay at a party.

Iocanepowder · 26/05/2026 06:43

Sounds like you’re doing an amazing job op

Lovingapeacefulgarden · 26/05/2026 06:37

OP some parents are a lot more entitled than they were years ago so this wasnt an issue because nobody did it. Its terrible behaviour but yes be wary of the mums who may just drop and go anyway. Speak to the trampoline park in advance and tell them under no circumstances will yoi be paying for these kids or supervising them. I have 3 kids and wouldn't deaam of asking for one of my other kids to go to a party let alone actually dropping them off and running. Childcare is my issue not anyone else's.

BunnyMcDougall · 26/05/2026 06:35

You’ll never see these mums again, as you’re not a fellow mum at the school gates, so the need to tip toe around politely is reduced.

At our local trampoline park, each child must be paid for, signed in by an adult, and given a wrist band in reception before getting through the barrier. Tell the mum—sorry, but X’s sibling is not invited, will not be bought a ticket, nor supervised in the venue. If she is dropped in the foyer, that is where the child will be left for the duration of the party. The child will not be transported to KFC with the group, and if she is dropped at the venue, she will be left there, unsupervised.

Lovingapeacefulgarden · 26/05/2026 06:33

hellywelly3 · 26/05/2026 02:01

I’ve always had other children with me but I just ask if it’s ok to leave the invited child at the party and collect at the end as I have other children to look after. I would never dream of taking a sibling along.

I think it does. They probably feel that mum or dad cant be bothered with them

PurpleThistle7 · 26/05/2026 06:30

I am sorry you are having all this stress from what is such a kind thing for you to do.

Just on the party bags - my son is 9 and still gets something at every party. We stopped ages ago and went with sweets as I hate the tat. Personally for just 5 kids I’d do something - one of those £1 bags of sweets and a bubble wand? Something super easy. It’s a good way to signal the end of the fun as well.

Peanutbutterkitty · 26/05/2026 06:27

Please let us know how the CFs reply OP!

Mangochutney33 · 26/05/2026 06:26

ShetlandishMum · 26/05/2026 06:14

No taxi driver would do it. What if no one is at home?

Then I guess the taxi would have to take the child to the police or call them. Like I said, I'd text the parent so they were aware the taxi was on its way back to them. If they didn't want their kid abandoned in a taxi then they better get their arse home again to receive them and not abandon them hadn't they.

MassiveBackstory · 26/05/2026 06:26

As for how to deal with children expecting party bags:

yes, they do / will expect them
no, that doesn’t mean you have to provide them or have put on a substandard party if you don’t

If a child asks you for one, a breezy “Aw, sorry darling, not all parties have party bags. I hope you had a lovely time doing [X activity] anyway! Did you get some cake?”

Good luck OP, kind of you to step in Flowers

Mangochutney33 · 26/05/2026 06:23

Goditsmemargaret · 26/05/2026 05:54

You wouldn't do this.

I totally 100% would. I have zero time for CFs and would not be lumbered with their kids. If the taxi wouldn't take them I'd dump them on the venue staff to deal with. Not my problem. The CFs will keep getting away with it if everyone lets them, that's why it's such a problem in the first place with everyone going "awww it's just a child of course I'll suck it up and let the responsibility be dumped on me and pay for them". I'd be nice to the kid but they wouldn't be joining the party and I wouldn't be taking responsibility for them, I'd explain their parent made a mistake leaving them at the party and should have taken them home with them. It sucks for the kid but that's not my problem, it's the parent who abandoned them that caused their upset.

Purplewoman · 26/05/2026 06:21

Some great advice regarding how to word message regarding not accepting extra children.

if you are still unsure about party bags, my go to at this age was a slice of cake and a packet of Haribos. Always went down well with the kids. No plastic tat, and doesn’t cost a fortune either.

Hope the party goes well. Your niece is very blessed to have a lovely supportive Aunty in her life.

ShetlandishMum · 26/05/2026 06:14

Mangochutney33 · 26/05/2026 05:40

I'd put the uninvited kids in a taxi to their address and leave whoever is home to pay the driver. Text the parent to say you've done it, so if they're elsewhere they can get their arse home again. Bet that'd make them think twice about doing it in future the CFs

No taxi driver would do it. What if no one is at home?

Goditsmemargaret · 26/05/2026 05:54

Mangochutney33 · 26/05/2026 05:40

I'd put the uninvited kids in a taxi to their address and leave whoever is home to pay the driver. Text the parent to say you've done it, so if they're elsewhere they can get their arse home again. Bet that'd make them think twice about doing it in future the CFs

You wouldn't do this.

Mangochutney33 · 26/05/2026 05:40

I'd put the uninvited kids in a taxi to their address and leave whoever is home to pay the driver. Text the parent to say you've done it, so if they're elsewhere they can get their arse home again. Bet that'd make them think twice about doing it in future the CFs

EnidVance · 26/05/2026 05:37

I would make sure the trampolining place has a list of names or you’re around to supervise who gets booked in so Lucy’s mum can’t add a sibling in or claim they’re part of the party.

notacooldad · 26/05/2026 05:06

“I am very sorry but we cannot accommodate siblings. The party venue and food has been booked for a certain number of children.
*If you wish to bring older sibling, you can pay for their entry and food separately and you will need to stay to supervise them, they cannot be left with the party group.”

I wouldn't bother with the second paragraph. The first bit says exactly what they need yo know.
I dont know if this is a recent thing with behaviours as my kids are acults but I never had anything like this. People are so cheeky!

hellywelly3 · 26/05/2026 02:01

I’ve always had other children with me but I just ask if it’s ok to leave the invited child at the party and collect at the end as I have other children to look after. I would never dream of taking a sibling along.

krustykittens · 26/05/2026 01:48

I know this is not the point of the thread, but the CF parents who drop uninvited kids off at parties, run, and then switch their phones off, do you think this is creating a social anxiety for their kids? It seems pretty awful for your parents to force you into places and events where you are unwelcome.

floatinginacoolpool · 26/05/2026 00:53

Strandas · 25/05/2026 21:50

Sorry, it’s just that you replied to me specifically and I didn’t say it was weird. I know children with allergies (I have one myself), and people would be very happy for them to come with parents, but this wasn’t what the OP had posted. You said you wouldn’t demand food, neither has anyone here. We’re not talking about that situation.

You were one of a number of people suggesting by nine everyone drops their children off. I was explaining why there are good reasons why some people don't even at that age.

I appreciate that its a side issue but it was frustrating seeing people imply it's weird or abnormal when from my perspective it is hugely unfair to asks a party host to also be responsible for serious medical issues

babyproblems · 26/05/2026 00:50

Sausagesmyarse · 25/05/2026 13:35

“I am very sorry but we cannot accommodate siblings. The party venue and food has been booked for a certain number of children.

If you wish to bring older sibling, you can pay for their entry and food separately and you will need to stay to supervise them, they cannot be left with the party group.”

I’ve had the same so many times!!

Edited

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