any nfl player has to be considered dumb. running at top speed into another person is fullish. look at average life span of an nfl player.
same with boxing. sure you make 25 million a fight if you are at the top but then you have to pay doctors, lawyers, agents, your entourage. mike tyson paid a tiger trainer 250 grand a year for like 8 years to train tigers. thats dumb. bet he wished he had that money now. if you dont make it to the top as a boxer your dumb for not getting out in time
pro golfers are smart. they play a game and 70 or 80 people make over a million bucks a year off of winnings, not including endorsements.
kobe, lebron, garnett are smart. they realized that they had 15 years of using there body to make 10 times more money then a football player with 75%less contact. skip school and you get an extra 1-3 years of earning potential.