I'm not convinced it's as black and white as that. Look at the example given (Rocket Ismail). Not to pick on an individual, but he doesn't seem to be taking responsibility for any of his losses, even with the supposed "hindsight" he now enjoys:
-"One of his advisers pitched the idea as"fail-proof, with no downsides," Ismail recalls. He never recouped his money and has no idea what became of the restaurant."
-(COZ Records) "The guy was a real good talker," says Rocket
-(Cosmetics) "We were not prepared for the sharks in the beauty industry"
-(Retail stores) "The main store opened up in New Orleans, but doggone Hurricane Katrina came two months later". The shops no longer exist.
What strikes me about these examples is they're all supposedly somebody else's fault.
To my mind, what isn't being taught (both to young athletes, and to the population in general) isn't so much personal finance, but personal responsibility.