> Self-directed learning can take you really far, but it isn't right for everyone: mostly individuals who can truly direct themselves and have the kinds of interests that are condusive to broad understanding and knowledge.

I agree with the sentiment here, but I wonder if it wouldn't be more accurate to say it would be for everyone, except that some people have already had their natural driven curiosity ground out of them by sour experiences at school or poor home life prior to getting the change to try this.