Do you live off of $50k/yr or less? It is easy to tell other people to do that, but do you? The thing is you can't just put that money in the bank. In today's zero interest environment, there is no return. And inflation eats away at it every year. By that 20th year, that $50k will probably be poverty level. That's a fine life, isn't it?
Also remember that he left after one year, so he doesn't have a degree to fall back on. Can he go get one now? Sure, but that won't fit well into that $50k/yr budget.
He isn't asking for your sympathy. This is what they call a cautionary tale. This is him telling would be NBA players that the life of most NBA players is not what most people think it is. It is an expensive lifestyle. That is all. Anyone with any sense already knows this to be true. The endless list of bankrupt ex-professional sports players is evidence enough for that. But that still leaves a lot of people who don't truly understand that life isn't just one big party once you reach the NBA or any other professional sport.
IMO, the only ignorant statement I see, is the one you made.