When I'm on-the-road, the very much over-whelming majority of people I meet are either under 30 or over 50. Although somewhat evenly divided I think the young group is larger and very international. As far as people on this site I think its skewed toward the older crowd and aspirationals. There's only one way for you to find out who's out there and that's to get out there --> adventure awaits & enjoy!

BTW: It seems to me the 30 & 40 year-olds are focused on repopulating the world and related economic activities.