When you concentrate on the music quality does not matter assuming that minimum requirement would be knowledge of the tune and lyrics but modification in both to a degree is permissible.

Dont run down local cheap places. I know many (I was consultant for Voice of Amerian Television for a piece not too long ago we visited about 60 of the best over a two night shoot.) There are good people out there everywhere. You are probably suffering from master race paranoia.

No you dont need to lecture people about songs. I hate the ten minute presentation for a five minute song. That rips appart the context. Do you really think two hundred years ago that was the way songs were presented. Remove the museum atmosphere.

Don- quality of singing does not and will not matter. Again you would toss out a person with hundreds of songs who did not have perfect pitch. Sound elitist to me and a big barrier to extending the folk to all who can sing and play. ALL

Again performance is ok but when that is virtually all we get it is time for an adjustment.