[meko]

You might be able to learn stuff on your own but you'll probably do it at a much slower pace. I consider myself an autodidact but when I started taking in-person classes at my local CC I got access to an almost custom level of guidance. "You get out what you put in": If you're expecting professors to just upload all this karate to your brain, you won't get as much out of it as the guy practicing at home and bringing his questions in.