This can be a real problem. I was involved in Wicca for like 35 years. When I was in my thirties I would make a point of jumping over raging bonfires naked. (In those day my naked body was actually worth looking at). By the time I petered out of it festivals had become rather tame affairs. All of us former naked jumpers and dancers were no longer anxious to provide a peek at the goods, those goods having become rather shabby. The younger generation was decreasingly inclined to pick up the mantle. I read everywhere that young people are having less sex than we did. Sort of fits.
In similar fashion, some long-standing members of my band (Extraordinary Rendition Band of Providence RI) tell me they used go out and close the bars after rehearsals and gigs, playing spontaneously for free drinks. Now the same people have school-age children. Life happens.