Same thing for the Brazilian university I went to. Homework was optional, and there were "filter" classes like Calculus at the start of all STEM subjects where

Same thing for the Brazilian university I went to. Homework was optional, and there were "filter" classes like Calculus at the start of all STEM subjects where if you are not taking it seriously you are going to fail. Not a single final exam, I think we had 3 exams during the semester. Which was good so that the first exam was able to scare people straight. And an university is not a school. Nobody should be forced to take it, if you are not interested in learning just go home. But at the same time, a quality university should have a high barrier so that only people that actually learned and have demonstrated to have learned the required subjects, in a setting where cheating is almost impossible, should be able to get a diploma.