When the high is 110 F in a Phoenix suburb, you can’t ask the 14 year olds to skateboard 20 miles to school on a country road with no breakdown lane. Similarly, you can’t ask kids from Maine to skateboard to school in the dark on ice.
Whenever this topic gets brought up, a bunch of seemingly childless city dwellers think they’re making some massive revelation suggesting that kids just get their own butts to school at a comfortable 10:30 am.
It’s actually pretty simple: Both parents work. Somebody has to drive the kids to school (hard requirement — there’s no bus and a bike/skateboard is too perilous). Work starts at 9 am. School has to start earlier than that.