Same with live horse racing. Unless you go high up in the stand you are basically watching a bunch of horses fly past you for a brief couple of seconds every 30 minutes.

I've always thought top class golf would be pretty difficult to follow for those of us with less than brilliant eyesight too.

When I played (badly) I could never hit the ball far enough to lose sight of it, but when you were behind people on the tee who could belt a ball most of the time it was gone off into the distance before you could follow it. If you are watching top pros, belting the ball further than anyone you've ever seen then there's no chance of seeing it after it's left the tee surely?