Actually university is fairly easy if you seize the learning opportunities that courses give you; many students attend neither lectures nor tutorials/exercises nor tutoriae and then complain how difficult it is to pass the exam.
This still happens even though older semesters will tell any freshmen that they need to attend courses and do exercises to make it. What kinda works are mandatory exercises.
"university is fairly easy if you seize the learning opportunities that courses give you"
It might be "fairly easy" if you're lucky enough to have had a decent K-12 education, which is what prepares you to do what you say and do it effectively.
Far too many students graduate high school barely literate, without knowing how to learn, without sufficient direction or motivation. That's not to mention various emotional and psychological issues students might struggle with that keep them from applying themselves and making the most of their university education. It's also not to mention the fact that way too many students look at university as primarily a place to party, or to cheat their way to a degree.
Hm, maybe. I attended all of my courses because that got me straight-As in high school. I was then blindsided by needing to study for anything ever. So I was engaged, as far as I knew - but I didn't know how unengaged I was.
This is why I think people need to work and grow up a bit between high school and university. Figure out why you want to go before you commit to it.
I was in the military for 4 years between them (and I was not a good student before), but I decided to go to university specifically to learn something that interested me. And it was sad seeing my peers waste their time doing the same stupid crap I'd outgrown and become bored of in the military. (At least there I wasn't expected to learn anything hard.)