I start my first shift adult job at 0630 because it uses the most available daylight. School should be the same way, so sports, particularly winter sports, have some hope of being performed by sunset.

Having high school start early gets kids ready for the real world. Adults in a household should be considerate and stop making noise after 8pm and the kids should go to bed when tired, and not stay up with their phones under the blankets playing on instagram.