if folk clubs need reviving, then revive them, people like Vic who have organised clubs for many years should perhaps advise
in the meantime i will repeat my suggestions, folk clubs should try and do a club swap with places like sam lees nest collective, to bring down the age barrier, then try this... reduce prices [and publicise that] for students and people below the age of thirty,and for young unemployed people.
explain to older people why you are doing this.