I don't know where u stay and also not sure of how many Kannadigas you know. But it is true and a fact that Kannadigas do learn the local language if not go to the vernacular schools. We Kannadigas have no reservations against learning local languages. In B'lore all native b'loreans know Tamil, Telgu and quite a bit Malayalam even though being in B'lore. All border district ppl know the other state's language. We atleast make an effort to learn.