...with my nearly 2 yo DS, 6 yo DD and DH in order to meet some distant relatives of DH whom I have never met and whom I will never meet again?
DS will not sit still for more than about 12 seconds - he has the equivalent destructive force of a tornado. A Michelin star restaurant is not the place for him. We've suggested compromises (kiddy friendly pizza place, we get a babysitter and leave DS behind, dinner at home etc) but MIL wants us ALL to go to a "posh" restaurant.
So AIBU to say no and to stay at home with DS and to let DH and DD go?