No, it's a real problem in the spring and the early fall. Getting the younger ones to bed on school nights is tough to do when it looks like they should still be allowed up. When my daughter first heard about this, she said, "Don't any of these people have children?!!" I can tell you she is not happy about it and I'm sure there are mothers all across the country saying the same thing.
Exactly ... especially when you have 3 or 4 kids in a room, south-facing, they think they should stay up half the night.