Too Many Sports

There are too many sports in this world. Rhythmic gymnastics? Synchronized swimming? Curling? Auto racing? P.L.E.A.S.E.

First there is the issue of what activity is a sport. I have certain rules for an activity to be entered into my sports taxonomy, which I revise as needed. Here are some of the rules:

1. a person must sweat as a result of their own physical activity; therefore, hanging out in a sauna, golf, nor auto racing would be a sport.
2. no subjective scoring of performance; therefore, no gymnastics and no diving, to name just two activities
3. in sports that involve ice humans must wear skates; therefore, no curling

Obviously, some of these activities (you can call them hobbies, if you like) fall under more than one rule. If an activity falls under any one rule then it is not a sport.

I know that this paradigm won’t get rid of enough sports, but I have more ideas . . .