I've a simple solution, I don't go to folk clubs...
Haven't set foot in one for about 40 years...
Except once about 14 years ago, a pub in Clevedon advertised as a folk night..

Great old pub - real proper job cider - looked promising...

A long haired bloke with a fiddle got up to do a trad tune,
then for the rest of the night was shunted forlornly aside,
while a couple of slick middle aged men in expensive jeans and shirts,
showing off extremly shiny top of the price range looking acoustic guitars,
played Beatles songs for the rest of the night...

The mrs had to stop me heckling belligerently as the cider gradually kicked in...
Yeah.. call me a purist...

We missed the last bus out of Clevedon, and had to fork out for a bloody costly taxi home..

Some wedding anniversary that was.....!!!