How to Compete as a Youth Athlete

I find it real weird like these young athletes coming up now are competing only in CrossFit. So they're getting really good at like racing CrossFit. Is it necessary for the competition to be in the realm or can you just compete and just say, hey, do a bunch of sports? I think as much as possible, if there's a young athlete listening or a parent, you need to stay a multi sport athlete as long as possible.