Next summer we're off on a sailing resort holiday with the ILs. I've had a very awkward chat this eve with MIL that if the kids want to go in kids club they can but if they don't like it they don't have to go or I'll go with them. She thought I was mad - she was polite but she was evidently shocked at the suggestion.
I work 4 very long days every week so to me holidays are precious family time not a time to farm my kids out to paid childcare unless it's what they want to do. Of course I'd enjoy time to relearn how to windsurf like we did on holidays before the twins but having fun with my family is a million times more important to me!