They're out there. I played new world for the better part of two years all in mature, grown up clans. I think at one point we did have a 17ish year old that we all kind of ragged on but he was a good kid who eventually left for a more PVP focused guild. Recently I've been playing pax dei and the average age in our guild has got to be 50ish. We started out with a group of like 5-6 late 20's-mid 30s folks but a long the way we ended up picking up around 15ish folks mostly 40-75ish? Retired gamers are here and if you need people to gather resources, craft and just chill while you roam the world dungeoning, I can't recommend a better bunch.