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This has more to do with higher parental expectations, coming out of the general climate of economic insecurity in the United States. Upper-middle-class parents can hire maids to do some of the chores, but raising children is still exhausting in a society where young people have to be in the right track from preschool in order to have a decent shot at getting anywhere in life.

I don't think the type-A helicopter parents who insist on their children matriculating to elite pre-schools/boarding schools/colleges are that way because they expect their child to be the next Mozart. Obviously, there are some parents like that, but they exist in every society. Most of the parents who drive their children so relentlessly to be overachievers are that way because they realize what happens, in this country, to those who fall off of the elite track.