Is Tuition Really Necessary?

It seems like the JC teachers are moonlighting. So they are not so helpful after class as they are in a hurry to earn more side income giving tuition. What I understand is the teachers ridicule or are sacastic to their students during class if they do not know or did not understand the lessons. While learning need to be independent, teachers are suppose to facilitate and support learning and acquisition of knowledge.

The conflict of interest come when teachers can make side income through tuition. The desire to help the student is now focus on "paying" students in the tuition centre. I think JCs should have group mentors system that teachers are assign to during off-lesson time to be available to answer any questions and help students with need more clarification.