My brother and his fiancée sent out invitations for their wedding next summer. They've said it's child free. Fine, personal preferences. They then asked if my DC could look after their cousins! My DC will be 15 and almost 13 at the time, cousins will be 5 and 3. Especially surprising since the 3 year old is brother's child so you'd think she'd be allowed to attend. The wedding is around an hour from our house and my DC are very responsible with their cousins, but AIBU to say we won't let the cousins come to our house for the 2 days (will be a late wedding with lots of alcohol so can't go home on the night)? DH and I will be going as leaving DC is not the issue here (we think at that age they shouldn't be excluded anyway, but that's another story), but surely there are other childcare options that don't involve a 15 year old essentially being in charge of 3 kids overnight? I'm sure my kids would be willing to do it, both sets of parents are happy to leave them, my eldest can cook etc, but something's telling me it's not right...