> These kids (huge majority from upper castes) are treated with too much deference at home by the parents, family and society. Since they are served well at home by servants ...

Do not know which area you are from. But in practice most of the traditional "Upper caste" people are not rich enough for having servants. Their air of superiority comes from mere name of the caste and tribal feeling, but upper caste people will be dime a dozen in any given area and grow up like middle class kids.