I was, in fact, a TA at a university in Europe, and, rest assured, not all students earnestly tried to do the exercises. Moreover, very few students are interes

I was, in fact, a TA at a university in Europe, and, rest assured, not all students earnestly tried to do the exercises. Moreover, very few students are interested in in-person discussion: we had office hours twice a week, but few people ever came, except during the week before midterms and finals. I had many discussions about it with professors. One of them is pretty active in Facebook group for students, reminding them of the office hours, where they can get free one-on-one tutoring. Still, most of the time nobody comes to his office hours anyway. I think the conclusion here is very simple: students are not there to learn, they are there to pass exams and earn the diploma.