Circadian rhythm is part of human biology and there is no way to change it. The reason for sleep deprivation in adolescence is not only circadian rhythm. It is almost impossible to sleep well today, as today's high school student places great pressure on them to stay efficiently in every aspect. The university hopes that high school students go to school, finish all their homework, participate in multiple extracurricular activities, volunteer on a regular basis, and have a part-time job. From experience, I do not have enough time to do all of these and I still have time to feel social life and stress.
The discussion about free universities is similar to the discussion on expanding high school. For a while, a few Americans went to high school and graduated less. Changes in free public education and cultural premises - High school diplomas and skills have begun to agree to help build a better citizen and help the economy - the attendance rate and graduation rate rise sharply. The same can be said about higher education. In the modern high-tech economy, it became necessary to produce citizens with sufficient education and to provide important skills. Given the importance of this and its impact on social mobility, there is no option other than letting people who want to join go to school for free.
During the remainder of my university, this discussion penetrated the school and was re-enacted. Over the years, whenever my high school friends' words are deeply immersed in my spine, I may feel another comment that doubts my legitimacy. I went to high school with people who felt safe in the late 1980s and 1990s, and they believed that we had the opportunity to lead us. Some of those who graduated from college debt from 2006 to 2010 have pressure to find jobs with high salaries soon - others think that this is a guarantee. They feel that they themselves are competing with more and more college graduates. It is difficult for many people to find jobs that can live independently, as well as work and career development.