Anyway, back to the original question:

I would advise your son to stay away from poker, other than as a recreational activity every so often.

Most 22-year-olds lack the maturity to manage a bankroll and/or tilt, so even the really talented ones usually go bust. Drug and alcohol abuse often rides along with it.

The problem with encouraging a lot of poker play is that he will be more and more tempted to become a "pro" if he is initially successful, and at that point you won't be able to stop him.

Benjamin hasn't shown much of an interest in poker yet, despite knowing all about my success with it. I've made sure not to glamorize it. I've also made sure he understands losing comes along with winning, and how it can be really frustrating. Most poker pros don't want their kids to do it, too.