Let's not go down the prescriptivist route. Let people use the words and pronounce the words as they prefer. Like what do you do when you have a Spaniard and

Let's not go down the prescriptivist route. Let people use the words and pronounce the words as they prefer. Like what do you do when you have a Spaniard and someone from the Catalonia region and you're talking to both? Or as you mention, a couple of Ukrainians --but remember, some speak Russian as a primary language and others only as a remote second language. It's silly. Which of the various official languages and dialects should an English name counterpart take hints from, the dominant dialect or language, what about the ostracized local language?