College students can come in and out at will. Some schools allow students outside the school to enter, but some local universities are not allowed to enter except their own schools, or they must make an appointment with the school to enter, or someone in the school can vouch for you and take you in. These measures are also aimed at preventing criminals from entering colleges and universities and posing a threat to the safety of students.
I am also a college student, studying in Hebei, and now the university can go in and out at will. There are also nearby college students coming to our school to play, so we are still relatively loose in personnel access management. However, schools also have access control hours. At 10: 30 in the evening, the dormitory administrator must report the number of people in the dormitory to the guide, and they are not allowed to live off campus on weekends. Personnel management is still relatively strict.