"One idea calls for a ban on practices and other mandatory athletics activities, not including competition, from 9 p.m. to 6 a.m."
I've heard of basketball teams having practice at 5:30am. But this rule wouldn't have affected either of my kids. It could have stopped an extra inning early evening weekday baseball game. They never had "optional" training before 6am or after 9pm. The only event between 9pm and 6am was travel. There's no getting around it.
The net: This rule wouldn't change a thing. If a kid is serious about academics to start studying by 9pm is still hell.