Bill.Satellite, you are correct in saying that there is nothing that correlates between college and RVing, but what I posted was primarily about planning and I could have used any environment, other than classroom lesson plans, to show how some plan and others do not. What I said was a micro view and not a macro view related to college as a whole. In short, I share your perspective regarding college as a whole with all of it‘s facets.
That aside, there are lots of college classes, especially freshman and some sophomore classes, that do not have pre-requisites. Freshman classes are usually very general and broad based, and the higher a person goes in a college education the more specific and focused classes become. This is primarily what makes grad school classes much different than undergrad freshman classes.