I wonder if this is partly due to these families growing their kids in a "foreign" country - Chinese in the US, Jews elsewhere. These families feel their kids

I wonder if this is partly due to these families growing their kids in a "foreign" country - Chinese in the US, Jews elsewhere. These families feel their kids have to compete with the natives and may be at a disadvantage initially. Once you get the safety of feeling at home -- this sort of behavior tends to disappear (Japan being the exception here.)