A better way to phrase the question would be, "how many people over 40 years old actually make a living STRICTLY playing poker?" The answer would be around ZERO. Young people think just because they have had a couple of good years, that they are destined for greatness in the game. But eventually you realize that once you get to a cerrtain skill level, you are not much better than a lot of other people sitting at your table. Add on to that, even though you play hands perfectly, it just takes one bad beat to put you on the rail. Skill is crucial to the game, but luck is still 80% of the game, and is nearly impossible to make enough money to live off of, considering all the time it takes just to accumulate those morsels.