My 9-year-old goes to bed between 6:00 - 7:00 pm, though she doesn't go to sleep for an hour or so later. Her teacher was "very concerned" about us putting her to bed so early and commented that it "may be considered abusive".
I can't see how this would be construed as abuse. Her teacher also said it was "selfish" because my wife and I want to spend time together in the evening.
I addressed this with my daughter's teacher very firmly and invited her to call CPS if she thought we were abusive. The more I think about it, the madder I get. I can't seem to find anything that would indicate abuse. In fact, most of the material I've found on online forums indicate that a 9-year-old needs 12 hours of sleep. Most parents (on the messages) put their 9-year-olds to bed at 8:00pm because they get up around 7:00am. Our daughter has to get up at 5:15am, so I see nothing wrong with putting her to bed at 6:00pm to wind down before going to sleep around 7:00-7:30pm.