"I wouldn't expect players who were less than competent to be playing in public. Surely we practise behind closed doors and perform when we are able."

Nice sentiment, but unrealistic. 35 years ago the folk clubs I went to had audiences. Gradually the balance between audience and performers has reversed. OK - we might argue that standards of musicianship have fallen, but far more people are taking an active part and I see that as a positive development.   

Boredom? - it exists between one's ears.