Part of the difficulty with emotional views of problem sets and tests at universities is not so much that these sorts of problem sets are emotionally trying themselves, but that from the student perspective, going between institutions and class levels, the style, grading and expectations for problem sets and tests can change quite quickly. While I strongly prefer the sorts of problem sets being described, and preferr…
I can give you prof perspective on this. Going between different stages of education, you can't really double or triple the amount of time you study, but you need to change your study and thinking techniques to learn 2x or 3x more [1]. The problem is that if the teachers try to set up too easy a ramp at the start of a new stage, many students refuse to upgrade their study/thinking techniques. They continue to use sub…
At least for math, I found that by around Calc II I had to start grinding problem sets to do well on exams, and I can't imagine what the next "level" would look like for something like a graduate-level math course.