It's not the parents. It's the culture bent on the destruction of their most creative. A culture that tells all of us to focus on fixing ourselves constantly. To be someone we cannot be. Which is not creative and a normal that does not exist. The brightest people can't be harnessed. They need to create their own life, way, thing in this world. Theyfeel this they know they can't succeed and they look for an out.
The parents being awful sometimes saves the child because they can leave it all. The parents being decent traps the child and leads to a slower painful death for all involved.