Two reasons, chiefly. Every body is governed by circadian rhythm. There is no "right" or "wrong" way to be, but the majority tends to overrule the minority in

Two reasons, chiefly. Every body is governed by circadian rhythm. There is no "right" or "wrong" way to be, but the majority tends to overrule the minority in this great experiment we call modern society. Unfortunately, the "majority" are not developing children, but adults in authority who are less affected by disruptions to their sleep and don't have to prioritize the health and wellbeing of their charges and so don't. The second reason is more artificial. In the US, homework is given without any consideration for work or life schedules, let alone what other classes are assigning. I went to a "school of excellence" where I took eight classes each day, five days a week, and they all assigned roughly an hour's worth of homework each night. I had no time to work and barely any time to participate in extracurriculars without staying up each night until 11pm. Because I lived in a different city, I generally had to leave by 5:45am to make my zero period. Can you tell me what my younger self could have done differently so they were able to be asleep by 9pm?