At 3 my youngest was throwing a ball in the air by himself and hitting it with a plastic bat. He was also catching a football at 4 that kids twice his age never could. Had a coach who played WR in college tell me he was catching balls at the highest point and that this instinct was something that couldn't be taught. You either had it or you didn't. In youth football in one season (he was 9 at the time) he had over 300 yards in receptions and we never passed the ball once in the first three games that season. There were only 8 games played. He picked up basketball in the first grade and played PG for all star teams at every level.
He is a freshman in HS this year and still plays all three sports but he isn't a "super star" in any. We avoided travel teams and focusing on one sport and I am glad we did. Had he picked one he would no doubt be very good at it, but he loves them all and I don't care if he ever plays beyond HS. His coaches actually encourage him to play other sports, which is good.
I guess my point is let your kid be a kid and enjoy the sports while he can. Let him try different ones and let him play as many as he wants. At some point he may not want to play more than one or two, but let him decide. At some point he won't be able to play anymore and so the more he enjoys it as a kid the better chance he will grow up to be a good dad whose kids are allowed to enjoy sports, too.
I tell my son all the time he is extremely fortunate to be able to play three different sports in HS and he should enjoy it while he can. If he gets a scholarship one day, gret. If not, he carries almost a 4.0 average so I won't worry about his future. He is still very much a kid and just loves playing the games. That is how it should be and he is motivated enough he doesn't need me living my dreams through him.
Consider yourself fortunate and get ready for many great times watching your kid play. And prepare to be broke all the time!