They are unwilling to learn because University wasn't really their choice. Students are told, in no uncertain terms, that they will be miserable failures if they don't seek higher education. Since society feels justified in propagating this stupidity, millions of students each year head to universities and colleges in order to grasp that golden vine, and they'll do whatever it takes to grasp it with as little work as possible. Only the students who actually want to be there know that the golden vine doesn't really exist. And they are the ones who suffer.