In our church in Seattle (mainly Asian) and here in the Philippines, children are taught manners, to answer when spoken to, to be polite especially to elders, to have a conversation, etc.
This is not so with many other nationalities, even missionary children. We talk about the difficulties missionary children have; well, much of this is simply brought on by not being properly taught by their parents! In learning simple manners (Christ's kindness in action) and immediate obedience, children will have a better opportunity for success in life and growth in holiness. As one learns obedience from his/her parents, it is much easier to obey God in the future.