At any given time, there are AT MOST 360 NBA Basketball Players in the entire universe.
The probability of any particular high school student becoming on is only infinitesimally different from ZERO. The statistics for NFL Football and Major League Baseball are similar.
The teacher has a valid point: Have a serious plan, because YOU WILL NOT BECOME AN NBA PLAYER.
Isn’t that what we hire teachers to do?
This teacher seems to be saying that Curry has ONLY been successful in the NBA because his father achieved success that ALLOWED him to play NBA-level basketball.