1) Yes, you do. 2) No, you don't. 3) Depends.

2&3: I knew a guy, his father had sheep, plenty of them. He never bothered with Uni. He has been studying/training on seminars regarding agriculture, animal care, etc. He is set for life. He will never sit on a university theatre and keep notes. He does use technology (I remember how he was shocked when he discovered YouTube videos that exploded his mind and knowledge).

He picks up the phone and speaks to vets, he talks to agriculture specialists, he watches seminars, he gets better. He stays on top/ahead of things. He never spent 1 (pick your own currency) on University, housing, (Uni) books.

He stays in touch with his peers both in his country and abroad (he was taught English early on and how he sees the value of that investment).

I see him though being a guest lecturer in a Uni, to speak as a professional on this/his industry, speak on his part of the supply chain, what he would expect of "Education" to provide for him (his industry) in the future, what he would like to see people do for the promotion and progress of his industry. But pay for classes? Never.

So.. 2 & 3 :)

Edit: typos