Well I've got to admit it, the folk clubs of the revival depended heavily on the drink "culture" we used to pack them in, but only if there was a bar on the premises and as the night wore on the folkies got less and less inhibited, audience AND performers.
There was a large number of really heavy drinkers in Scottish folk music.

This bore no relation to the folk music of my boyhood 1950's when everyone in the community, old and young attended the weekly concerts and there was never any drink and all were encouraged to participate
The music was magic ...sacred almost, the old Gaelic songs passed from grandmother to sons and grand daughters. it was as much part of life as work, or keeping ourselves nourished.

Times have certainly changed and society with them, most of the youth groups have "learned folk", how to sing how to play how to be commercial. They all have a sameness about them, you'd be hard pressed to tell one from the other in the dark.....or even in
daylight.
The funny thing is that only one in a hundred IS commercial the feeling, emotion and inspiration has been surgically removed and only pap left behind.....folk should not be about how technically proficient you are or how commercial you sound. Good folk song should be humorous or profound or sad or full of joy. It should make you feel something.

In short we lost something as we became more prosperous less dependant on our neighbours, more personally insulated.
We have become emotionally deficient.