Language is the jewellary of the people....
What i think is that having something is better than nothing....If you have that kind of skills then you can feel yourself proud... Its not neccessory to know the tamang language to prove yourself but your dedicated heart and soul for tamang will prove you that you are the purely from tamang... 

Yes, definetely our behaviour or language or social norms and values are influenced by the community or environment around us. If we go to america and somewhere other parts of world, we must speak what they do.Wherever we are, and whatever we are but should love to our tamang heart... Thats the thing which determines you are the tamang.... let me come to the conclusion of my words now,,,,, 

Language is not neccesory tool to prove yourself what you are but the pure dedicated heart determines what you are........