1. College students lack learning motivation. Everyone thinks that college is the best time, and it is used for squandering and playing, so many people have no motivation to learn at all when they are in college.
2. There are too many temptations from outside. University is different from high school. Every day at 2: 00 and 1: 00, I study, eat and go home in high school. At 2: 00 and 1: 00, I take learning as the center. The purpose of cooking books every day is to relax after studying in college. When I get to college, I have plenty of time to control myself. No parents' urging, no teachers' nagging. There will be no fixed teacher to impart knowledge. The outside world is very big and tempting. Everyone wants to see it and try it.
I don't know what to do without supervision. In high school, teachers and parents urged me to go to college, and no one cared about you at all. Many people relaxed themselves and stopped studying.
The above is just my personal opinion.