>>i7l+(OP)
Fantastic book called Range that talks about this phenomenon. Surprisingly, the child prodigy to adult superstar pipeline is less common than the generalist to adult superstar pipeline.
Tiger Woods is the classic example of a child prodigy, but it turns out his path is unusual for superstars. Roger Federer’s (who played a wide range of sports growing up until he specialized in tennis as a teen) is more common.
>>Esopha+Cc
It depends on the field, afaik. I know someone who was an exceptional classical pianist, but they told me they knew they'd never make it in that field: They started at age 15, which was much too late to acquire the skills needed. Professional musicians I spoke to agreed.