"A choice to leave the singing, painting, acting and dancing to just those individuals who show great skills in these areas."
Maybe that's what's really different about folkies - because most of us refuse to make that choice, at least so far as singing and dancing and playing instruments. That's the reality that underlies all our milling around each other arguing about "what is folk".
One of my favourite quotes is by G.K.CHesterton. "If a thing is worth doing, it is worth doing badly."
"I'm a terrible clumsy walker - I'll just sit down instead... And I'm a very inelegant eater, I'm not having any more meals...And as for the way I breathe..."