Even further than that, if these kids are failing classes (see Olivia Loughlin), how much is paid to the professors to tweak it up to passing, hmmmm?
I honestly think you have to work at failing. I went to one of the schools mentioned. I truly blossomed as a student at university. It took me the first semester to get acclimated to the change from a big public high school to a big private university. But once I figured out that nobody is holding my hand and I could learn as much as I could absorb I took off, I never stopped. I even attended the summer sessions.
At one point in my Junior year I was called into the Administrators office because they said if I continued at that pace I was at risk of being forced out for having too many credits! I never heard of such a thing.