I think the psychological factors that cause college students to be late mainly include the following:

1, school reasons (external causes): some colleges and universities are lax in management, which provides an opportunity for being late and leaving early.

2, their own reasons (internal): A. Lazy, unwilling to get up early

B.because of some extracurricular things.

C. the continuation of bad habits before high school

D. follow the trend and watch others be late.