Phil.... it depends on what kind of parent you are, do you stay at home every night, with the kids, or get a baby sitter, so you can have a rest from them ( we all know how hard they can be at times ), or if your just across the way from the house/flat/hotel room, where you can see whats going on, do you have one eye on the meal and one eye on the place where the kids are.... so dont be too hard on the parents, remember its a holiday for them too,
when you are down stairs and the kids are upstairs asleep, do you know whats going on up there.? no, and remember they could see more that you ( they can see the door to where the kids are,),