A lot of colleges now have what amount to transition classes for high school kids who can't hack it in college. The upside of these is that they seem to actually help students who went to shitty high schools or who needed a change of environment. The downside is that typically they don't count for credit but they still cost money.
Community colleges also deliver this kind of education, and can be quite affordable. Chris Rock may have made fun of community colleges, but they fill a glaring need in society that can be difficult for us smart, well-to-do people who went to good schools to understand.