IIRC, the average age was 59, but that was a year or three ago & it might have applied to another GA subset. Most of us are indeed clocking up the years, but I don't see it as particularly relevant all the while we are encouraging youngsters in whichever ways we do. I don't like the way the LAA is being portrayed as exclusively male, nor do I enjoy T C-T portraying herself so publicly as some sort of a downtrodden, female pilot that by default represents the rest of us. She doesn't and we aren't.
ETA - slow to type that, so other posts got there first with the figures.