I did not understand this in the first 2 years of uni; I was in a very easy going high school before uni (this had something to do with my grades as well) as in, I did not have to attend classes, so I was used to just going to the exams. Which was great because I could make money writing software while others were sleeping in class. When I went to uni I just continued that pattern; it alienated me from my peers and as a result I did not like. Until (around 2 years in) I got bored and picked a graduate course (kolmogorov complexity) which could not be completed without attending; it was excellent; very small group (6) and the prof. That changed my ideas a bit ; I still wouldn't go to the auditorium stuff (I have/had (ex death metal band gitarist...) tinnitus; I cannot hear anything in full rooms with people whispering and sound echo-ing anyway, so what's the point). Well recommended; going to those gave me businesspartners + colleagues + funding for my first 'real' company as well.