In 2020, the situation is special. College students spent the longest winter vacation in history and finally looked forward to starting school in September. However, there are also university requirements that students cannot leave the campus without special circumstances, that is, closed management. This will make some college students anxious. They are afraid that they will have psychological problems after the school is closed for one semester. Some people question why students are only managed in a closed way, while teachers don't. I think the reasons are as follows.

There are many college students, with great mobility, few teachers and little mobility. Compared with middle schools and primary schools, the most special thing about universities is that their students come from all over the country. A large number of college students rush back to school from all over the country, and it is risky for a large number of migrants to flood into the city where the school is located. College teachers are different. They generally live in the local area, and the possibility of carrying the virus is very small. In addition, their number is relatively small compared with the number of students, so they cannot be closed for management.

Teachers have more roles than students, so closed management is inconvenient. The role of college students is relatively simple. After they enter the campus, they can just be students. Teachers are different. The profession of teacher is just one of their roles. They are the parents of their children and their parents' children in their own homes. Therefore, if teachers are also managed in a closed way, the teachers' families may not be able to run any more, which is very inhuman and may also have a negative impact on the families.

The above are the reasons why the relevant departments require the closed management of college students in the normalization of the epidemic, but the teachers do not use it. At present, only a few colleges and universities have started closed management. Personally, I think the starting point of closed management is good, and the time of closed management has not yet been determined, which may not be a semester that students are worried about. It may have been closed for a while, and the students who returned to school have passed the quarantine period and will no longer be closed.