The point is folk - by which I think of the middle class, informed, contemplative, argumentative people on here - don't believe community folk singing goes on anymore because those people may have been exposed to viruses like education, the movies, rock and roll and the TV news and so the noble savage has been infected by choice and cannot be folk. Well I know people, not a lot but a few who have nothing to do with the folk community, i.e. wearing pretend old clothes and drinking from leather tankards but qualify as folk by any other criterion.
I'm not folk but only miss out by a generation (there are over 90 years between my son and his grandfather) and there are people around who still qualify. It's presumptious to think that because a concensus has built up that folk have died away like the neanderthal, that they actually have. I do agree though that folk would be most unlikely to be found in folk clubs.