Ewan MacColl was pretty posh himself. In fact The Folk Revival is a posh person's game so I'd say you're in good company. Folk Oiks (like me) are exceptions that prove the rule; but we know our place and are quite happy to fling ourselves in the nearest ditch out of deference if not outright authenticity...

'I say, you chaps - anyone for a spot of the old folk dancing? Or should we proceed direct to the jolly old incest, what?'

https://www.youtube.com/watch?v=CuqhEix8lGY