Ah. Math department. That's all you needed to say.

Joking. Joking. In all seriousness, my freshman and sophomore years were quite different than my last years in high-school. For one thing, the classes didn't meet everyday, and the homework jacked up through the roof. In high-school, we were practically spoon-fed. At the university level, all of sudden you had to teach
yourself a lot of the material you'd need to pass the course. Sometimes that was an indictment of the professor, but more often than not it was because the material was just covered too quickly (had to be, or you'd never manage to finish all the course objectives) and you had to go back over everything with a fine tooth comb to figure out why you kept getting wrong answers on your homework.
Grad school was another paradigm shift, but that varies even more from one school to the next. UIUC was... a pressure cooker. The faculty were under so much pressure to publish and win more grant money that they barely qualified as human anymore. Students were only useful for the research legwork they could do. Those students who were on fellowships were treated decently because they brought their money with them. Students who were funded by the university as research or teaching assistants were little better than slaves. I know that sounds like it has to be an outrageous exaggeration, ridiculous. I assure you it isn't. Things got so bad that the graduate students came
this close to unionizing. I know one professor whose modus operandi was to grudgingly allow some starving grad student to work for him for 6 months, without pay, with the promise that if his work was good enough, he'd sign him on as a formal (paid) research assistant. Usually, he'd drop that student and move onto the next one at the end of 6 months. He was not unique, he was just the most blatant.
After two years in that hellhole, my wife and I escaped back to TAMU. I'd had enough and went into industry. She continued on with her Ph.D. It was night and day. That department welcomed us both back with open arms (even though I was no longer going to be a student) and gave her every possible tool to grow into a better engineer.
So, yeah, not all universities are made equal. Some universities take pride in their students. Some pretty obviously could not care less as long as the research dollars keep rolling in.