I find that observation by MikeofNorthumbria interesting. I live in Ireland where we've got very few folk clubs but there are sessions, gigs, concerts and other venues.
Last year I went to see an Irish musician, who does mainly his own version of traditional songs, in the Cobblestone, a good folk venue in Dublin. He's still good and has great songs and he would have packed the place 30 years ago--this time around, for most of the evening, I was the only person in the audience. Just after that the Foghorn String band played there and the place was packed (mainly with young people)--and bluegrass is a real minority interest in Dublin. Around that time Prison Love, a young Irish group who play a mixture of bluegrass/zydeco, played in Whelans, a much larger venue, and to my great surprise the place was totally packed out--average age around 20-22. Meanwhile, at the bluegrass gigs that I go to, where most musicians are middle-aged, there is practically no audience (besides myself!) of any age.
My take on this (and I go to a lot of venues in Dublin): young people go out, they want young groups, they want a bit of fun. Older people stay at home and watch TV--they don't even go to the local any more. Nothing will change this.
As obnoxious as her comments were, I fear that Guest,Fionnghuala does represent the viewpoint of many young people.