I often hear people talk about “specializing” in a certain sport.There’s personal trainers and travel teams to help with the process.
I also hear people mention that kids should play multiple sports. The all-around athlete. Use other muscles. Cut down on overuse of a certain muscle.
It’s all a matter of opinion.
From my perspective, as a kid (Under 16) kids should play as many sports as they can during the year. I firmly believe that when an athlete begins their junior year in high school they should start thinking about if they want to play a sport in college. If they feel they have the talent, maybe they should start concentrating on that particular sport?
As a kid, do it all. Play Baseball, Basketball and Football for sure. Run Track and Cross-Country. Play soccer. Golf, swim…do as much as you can.