I thought i was alone- I'm seventeen and enjoy folk music! Although, to all extents and purposes, i feel as if i may as well be sporting a duffel coat and and a grey beard... maybe i was born too late?
Where i stay, (in a part of scotland where men are men and sheep are nervous) there is a vibrant folk scene; but only if you have money and are willing and able to drive to the nearest big (i use the word big lightly) town. I don't quite fulfil either requirement! :) I've got my third driving test attempt coming up soon, i think i'm distinctly lacking in the old brain-to-vehicle co-ordination department...
As for your friends, get them to watch 'o brother where art thou', it has some amazing music in it... they may find their tastes are more diverse than they had thought! :)