My state used to pay 100% of your state college tuition if you maintained a 3.0 GPA. A lot of students in my freshman dorm stayed until the 30 hour re-evaluation period and then disappeared forever. They partied, never went to class, never studied, and withdrew from most of their classes. They'd regularly fall asleep in or oversleep for 11:00 classes.
As a teacher, how do you handle these students? Many of them have not been raised to be on their own, and college is the first time they're let "off the leash". They're unprepared to be independent adults.
Additionally some students fail the same class over and over, then keep retaking the class with no improvement. They keep asking the same questions, slow down the class, and make it more difficult for everyone else to learn.
As a teacher how do you handle these students? Maybe you've already failed them twice. Maybe you've had extensive study groups, office hours, extra credit materials for these people, but they continue to do poorly. Some of them you suspect have learning disabilities or other mental problems that may always interfere with their ability to take your class.
(Later the state college system changed it to 80% tuition for 3.5 GPA, and at least my college mandated a maximum of 5 withdrawls, which cut down on the problem some.)