However, getting ones body into the physical shape to play a sport and achieving the mental acuity to grasp extremely complex systems of sport is vastly more challenging in the first place than memorizing combination of buttons to press and programming macros into your keyboard.
That's apples and oranges.
Also, there are some tennis players that go pro when they're in their early teens. I don't know any examples off the top of my head but they do exist and stuff.