At one time I would have said, {To those who wanted to learn about folk songs} go to a few folk clubs and you will emerge with some sort of an indication - that is no longer the case.

Sadly very true, what they are more likely to get will be bad versions of "hit" songs by The Everly Brothers, Buddy Holly and The Beatles, played as "sing-alongs" where apart from certain parts no beggar knows the song well enough to sing the thing all the way through - might make for an entertaining enough night for some but it sure isn't "Folk", and shouldn't pretend that it is.