can't remember who said it, but "Have you offered to pay for parents' tickets and promise them a night out at a show in London including a hotel overnight to make up for putting them out? Because that's probably what I'd do. And throw in dinner for good measure. "
I'm not so good at figures, but tickets to a london show - 70?, hotel - 70?, dinner for 2 in London restaurant - 50? and I think I'm being very conservative, so about 200 quid. At least. OP has already said she's skint and doing this on a shoestring.
OP, I understand your frustrations, but from your last post it sounds like you're looking for problems and making this worse.
Obviously, the first thing is there's also the good chance the original plans will hold, so no problem. I understand the need for back up plan.
The idea of your parents having the kids for the w/e and getting a babysitter is a good one. They may not be willing to cancel the theatre, but surely as a compromise not do the leasurely dinner before hand, so no need for the babysitter arriving at 4pm. That's an assumption on your part. Have you actually asked them if they would consider having the kids, and getting a babysitter so they don't need to cancel their trip?
Maybe they are being more difficult as they realise you expect them to drop everything and are annoyed at your assumption? (Just a hypothesis). If you approached them with ideas that clearly demonstrate your appreciation and gratitude they may be more forthcoming.
No reason you can't organise a baby sitter, even if if you don't personally know them, or maybe your parents, from their circle of friends know someone.
If I were in this position I see the options as
- pray the in laws can do it and stick to original plan.
- ask parents to have the kids for the weekend and pay for a babysitter for that night.
- Ask friends locally if they will do it (in exchange for taking their kids for a couple of days in return).
- if they won't, only 1 of you goes to the wedding.
- If you don't want to go alone, neither of you go and just accept things don't work out sometimes.