Trying to stereotype golfers might be harder than trying to stereotype posters.
There's an evolutionary process that leads someone to tournament life.
I'd assume most golfers, as Michael calls them, do not really play enough golf to want to have their games tested. Their egos are clearly at work. Throw in some laziness, not wanting to learn the rules that accompany tourney life, the costs, and you have a lackadaisicle person who plays golf. The enviornment where they play golf is key too. If there's an active tournament schedule and plenty of competitors, eventually every red blooded American who thrives on competition will hear the call, take the plunge, be embarrassed, and, get over it.