For college students, they may feel that they have paid tuition fees to study in college or to do something they like. Cleaning is out of my consideration. First, I feel that if something that is not my own appears in a clean place, I will have a dirty psychological thought. Second, you will feel tired when cleaning. Even if I don't clean myself, others will help me clean. Even if it is a little dirty, it will take four years. Therefore, some people will be unwilling to bend down and clean with a broom, and feel tired.
Therefore, universities force cleaning to be linked with credits, and do not attach importance to students' extracurricular freedom. But to be honest, in essence, there is no problem with this arrangement in the school. The nature of the school is to train more outstanding talents to become the pillars of the country. If students are made to be self-disciplined in this way, the responsibility of the school in this respect will be fulfilled.