University is a micro-society. Although it is not as malicious as the real society, you will meet bad people.
There are all kinds of birds when the forest grows up, but I admit that the overall quality of well-known universities is higher than that of two or three junior colleges, but there are also many exceptions, such as all kinds of roommate killings, from being forced to jump off a building to being unsuitable for moving to a dormitory.
But, ah, the university is a place where you can adapt to and transition to society, where you can be independent, learn to be a man and learn to protect yourself.
There are bad people everywhere Be calm when you meet them.