This would be sad indeed, and must surely have happened numerous times. Bear in mind too that parents of gifted children are very likely to be highly intelligent and likely also to be perfectionists there are great advantages in having high goals. One should not squash the perfectionism completely. That would be wrong. It just needs to be put into context.
Gifted children know how to argue.
From this point of view it is certainly not easy to parent a high-IQ child. They have very advanced reasoning skills and will often come up with quite astounding lines of argument that will squash the demands of the parent in one blow. Modern society and particularly American parenting books preach that parents should manage their children with debate rather than by dictatorial methods. I am the boss of this house and it s my decision. There is no more to be said.