Cause the parents need to make the kids ready for school before they themselves drive to work.
If school started later, all jobs would have to start later, too.

Because if you get the kids sleep deprived early in life they won’t notice how overworked and underpaid the system leaves them.

Students need to unionize. The homework assigned is beyond unreasonable, especially when there are teachers that don't let the students do the homework in class if they finish the in class assignments. When you get out of school you never have this much work to do at a real job. Homework barely even exists in real jobs and you should be paid a premium for it.

Kinda /s ...

One thing that was not addressed in the article is morality. Among the other things I learned during 50 years in the workforce is that sleep is treated as a moral issue.

Choosing to "stay up late" or choosing to "sleep in" are decadent, unless it's a result of late socializing. Choosing to go to bed when tired instead of staying up socializing is antisocial and even an insult to others. Choosing a sleep schedule that is natural and healthy is selfish when it conflicts with the imposed schedule. Not going on-call, taking shift work, or working extended shifts demonstrate the moral failing of a bad work ethic. Students suffering because their circadian rhythms don't match the imposed schedule are lazy or don't care or are unintelligent.

We're not going to fix anything until we treat sleep and sleep schedules as biological imperatives instead of moral decisions.