The club that I am involved in running will accept any singer/musician of any age (we have had some excellent young musicians recently), and/or talent. We have a great variety of music, not all to my taste but that would apply at any club folk or otherwise. However we do draw the line when we have a paid guest and only invite a couple of our regular floor singers who can sing/play reasonably well and will not forget the words. I have heard a few moans on these occasions (why can't we have a spot? etc etc) but we feel that a paying audience and the guest deserves the best we can supply.