@TreeMan - I know what you are talking about and I see a lot of this in the sports realm as I see overbearing parents attempting to project themselves into their kids all the time.
I have heard some horror stories about how as a baby the parent would tie their arm behind their back in order to ensure that their child become left or right handed.
I know there was one quarterback in the NFL that had severe problems when he became an adult and it is a miracle he is a living, breathing member of society considering what his father did to him.
In this instance, the dad basically bred his son to be an NFL quarterback and is even rumored to have given his kid steroids in order to grow faster.
The dad refused to let his son go to school until high school and instead focused on simply breeding his kid to have a life that was literally nothing but football.
Once the kid did become an adult and a professional athlete he lost his love for the game once he realized what his life had become and had not lived the life of a normal person and sought out as much living as possible which included drug use, several arrests, and excessive drinking.