Correct me if I am wrong here but is this not how you learned to fly the early microlights? Before registration and licensing became mandatory you just had to get some ground based advice and off you
Well, with single seaters, yes. But pretty soon there were two seaters, and people who had survived long enough to be able to teach the others. Of course, early glider training was done solo in the ATC and by civilian clubs until about 1950. Doesn't mean it was the best way to do it though. First microlight I flew was a single seater, but I had a PPL and a silver C. Didn't crash it.