Some of the best performers will make a point of sitting through the floor spots until it is their turn, encouraging and warmly applauding. I'll name a few:- Martin Carthy, Alastair Hulett, Nancy Kerr and James Fagan. They were beginners once. I'll agree that to an outsider that a first step into a club or session can present a grim face, but the beauty of it all is that here we have a scene that encourages people to have a go, otherwise it stops becoming folk music and just becomes art.