OK, I'll bite.
Junior colleges are a very good way to discourage anyone from thinking for themselves. They are a cynical way to disguise youth unemployment while maintaining maximum control over the aspiring working class, by selling them cheap seats in the middle class.
To a very large extent they appeal to third-rate students, and are staffed by fourth-rate teachers. Of course there are many noble exceptions, but depressingly many are holdovers from an earlier era: today, they would have the utmost difficulty in being hired.
How do I know? Let's just say that I'm a qualified teacher and lecturer (and know what that's worth) who learned a fair amount about the Californian education system when I lived there, including being offered some jobs, and being turned down for others.