All of those statements are clearly true.

Most people just want someone to give them a job and let them do it. Being told what to do by an authority figure is considerably easier than figuring out what to do on your own. College is a system of authority and assigned work, and that's a big part of why people like it.

I don't think the purpose of college is to provide people with education and a love of learning. Most people don't want that. The majority of people don't like to learn things. Learning is for nerds.

The purpose of college (or any form of institutionalized education) is to do all three of the things that you listed. It's a tool of our society. Changing it would only make it unappealing to the average person. People who love learning have wikipedia.