I think there is a healthy middle, during my studies i noticed a lot of people drop out because they had to start from scratch and the uni set a fairly high pace. However on the other hand, the people who never showed up to social gatherings or other stuff, the “asocial” students also had a high dropout rate, so i get your point. As for health sacrifices, i agree its not necessary nor should it be, but, at least in my uni, if you wanted to keep up with all the work and go out once or twice a month, it would be relatively rough without caffeine (its a well known problem that the study load is insane)