At best, the consequences of college students being late for class interrupt the teacher's lecture, affect the students' attention in class, and delay their own learning content. At worst, it damages their personal brand and personal style of doing things.

In general, punctuality is the minimum requirement for yourself.

I don't care about my behavior at all. It is unacceptable to be late at will. We must remember the consequences of college students being late for class. To put it mildly, it interrupted the teacher's lecture, interrupted the students' attention and delayed their study.