Happened to me a few times and always got asked so why can’t you speak in Pushtu…My great great great grandfather was from Sawat, moved to India with a few of his relatives, the rest of the generation was born in India including my grandfather who later moved to Pakistan so Pushtu slowly disappeared. We still have some family who speak Pushtu but people just don’t get it. I would also like to point out that all “Khans” are not Pukhtoons and all Pukhtoons don’t necessarily have a last name of Khan.