As long as folk music's main venue is bars and clubs, you have an gap problem. Wehn I was a kid in Chicago, there was all kinds of folk music happening but the doors were closed to those 12-18. By the time you hit 18, commercial radio has taken over your tastes. The festival movement has been a big help, and the Comhaltas movement has given kids a structure to pursue the instrumental and dance stuff, but not so much the vocal.