Comment by gonzobonzo

> The number of students there because they want to learn a subject rounds to zero.

Further - even if someone wants to learn these subjects, most don't see the value in paying for a college course to learn them. Close to no one, after receiving a college degree in a subject, says "I want to learn more about X, I'm going to go ahead and pay $4,000 to take a class in it at the nearby college."

Plenty of people learn things after they graduate. Just about everyone does so in a better manner than a college course. Colleges are only viable because they dangle degrees over students' heads, and then they complain that students are only coming for the degrees.