we have a 7 yr old daughter and we do pretty much like everyone else, go out for a meal and take our time, a walk and a drink in a bar on the way home, by which time it could easy be 11 o'clock.
we take our lead from her really, if we are in a bar and she's made friends, we are happy to stay a little later, but obvously not till the early hours ! Then home and a little sit on the balcony after putting her to bed.
when you have kids with you, it tends to be an early rise the next morning and a jam packed day, so we're all quite tired by the evening anyway.
I certainly wouldn't insist she goes to bed at the same time as home as some do, after all its part of her holiday to 'get to stay up late' !
I also have seen mums and dads with babies and toddlers in buggies steaming drunk and staggering, which I hate to see.