I used to until I was about 23, 24. I was a really great wrestler and football player.
It doesn't fukking matter if you're good at sports in high school, though. It means fukk all in the real world. It had little to no bearing on what college I went to. It made absolutely no difference in the law school I went to. It doesn't impress girls when you talk about how awesome of an athlete you used to be.
At best I learned how to exercise and how to scrap. You might learn some life lessons doing sports, but you're not going to find anything out there that you couldn't learn somewhere else.