I'm not pretty sure if you mean that it is also important for parents to teach their children aonther language (aside from their mother tongue). anyway, teaching your children your own language is not just important, It's VITAL.... Actually, as a parent, you can teach your children any language you want (english or other), but you would not want to let your own child grow not knowing your own mother tongue, would you? :)

i agree with jura... i think a child should learn their mother tongue and they can choose whether or not they want to speak it. It's important the children know who they are and where they come from

Of course they should. Later when the children grow up they can choose if they want to speak it or not.

the truth is reverse: it is important for children to learn mother-tongue. no language is better than any other. there are too many linguistic genocides around the world and no NGO or international organization cares about it. even many of them help genocide to be commited. when parents surrender they have surrendered of themselves. I am curious about you because of your questions. could you tell me a bit why these preoccupations?