There's plenty of anecdotal evidence that most champions are born into certain environments and encouraged early. Then, later on, they might get some assistance from their federations.
Tennis doesn't encourage any kind of intellectual development.
If you don't want to practice, unless you have a hard-nosed coach, you don't have to.
Unbelievable, yet, what else could it be?
The good news is I have time.
I am there to play tennis and represent the U.S., but I'm also aware that not everyone's going to be able to think that way.