Exactly, it's extremely comforting to have that buffer, whatever it is - we (humans, not unschoolers :D ) will often grab unto anything that sounds even mildly reassuring, just to think we're not alone, that we are safe.

people will succeed or fail according to how much they believe they will do one or the other and how much effort they put into it.

That is so true, it's all up to you. Whatever you want to get out of life, it all depends on you and a lot of people seem to ignore that, which I really don't get 'cause they're wasting their life. You have to work for it.
We all do.