tt hit it right on the head. the biggest reasons: 1. 1 swing can mean $100,000 or more dollars. because of the distraction, that cost Tiger 1-2 strokes (he bogeyed the hole). it also killed any realistic chance at a comback, and he ended up losing by only 2 shots and made $200,000. if he would have made a par there, he was looking at much more money. Who knows, that could have cost him a chance at a playoff with Ogilvey. 2. Golfing takes the most amount of concentration when it comes to a sport. being a TINY bit off on your swing can be the difference between a great shot near the hole and a ball chunked, skulled, or hit into the water. in most other sports, you dont have to be THAT precise. 3. (probably the biggest) this is how golf has ALWAYS been. you grow up and learn to play the game with people being quiet when you are swinging. since a person's mind is trained from day one be concentrate on a swing that basically deals with no sound distractions, a cough, honk, bird chirp, camera click, a flash, a fart - any little distraction is magnified 100x because you are not accoustomed to it.