I don't think anyone coaches like that deliberately, but I've seen it happen to multiple players unintentionally whilst growing up and then later as an adult at different clubs.
The best players I ever played with were victims of this. They scored hundreds pretty much every week in schools cricket against good opposition, took 5-fers, opened the batting and bowling, played county juniors etc...
So much wasted talent. Of course, other things are a factor too, such as discovering the joys of life as a teenager, but in this instance, I think they were killed by coaching, overcoaching, and too much cricket. I'd have killed to have even a tiny bit of their talent.