Can I not go to kids party

[displaycase]

AIBU or just badly mannered
Nice mum at school asked my kids to her daughters birthday party in holiday. Theatre so tickets are expensive. I told her I wasn’t sure if we could go as my daughter might have a hospital appoibtment and we had planned to go Abroad if she didn’t .inoffered to pay for tickets if we didn’t go and She said she’d book anyway and if we couldn’t come go along with her son. last week we got all clear for my daughter. I’ve gone to book our trip abroad now - and tried to book it so we can go on Sunday the day after the party - but the plane are 500 pounds more expensive than if we go the day of her party. It’s a long haul trip and I’d like the extra day abroad as well. I’ve written to the mum and offered to pay for theatre tickets again and also to take her daughter out with mine for special treat but feel bad. Should I just pay all that extra money and go on holiday a day later? I feel I’ve been inconsiderate.

[LittleMissWeary]

You've been upfront from the start. Go on the Saturday and save your £500. Without being rude you're massively over thinking this OP. By all means treat your daughter and birthday friend at a later date, that's a kind gesture.

[Nearlythere1]

No no no! You've been super nice to the mum and daughter with how you've gone about it and your offer of a treat day yourself. Get the cheaper flights!!

[Singlenotsingle]

So the mum and her ds get to go to the theatre? At your expense? What's not to like? Result for everyone!