[Mediterraneo10]

Not all lecturers welcome questions, it depends on the country and culture. Certainly my own undergraduate experience consisted of a "human text-to-speech engine" experience where the lecturer lectured mainly from a text, while students were expected to silently listen, and then answer any questions they had themselves by searching in the literature.

When I moved on to graduate studies and had a weekly seminar, then questions and discussion were welcome, but I sympathize with the feeling that in-person undergraduate education is a waste of time and (in countries that charge tuition fees) money.