I tend to say you are right. But that most people in here are 40+, can also be due to younger people use the social medias more, and not a forum they to pay for to be part of.
But I guess RC is still alive, but more all the rtr’s than old Tamiya, at least for younger people.
I was heavily into skateboarding in the 80/90’s, and it suddenly died. Now it is back, more than ever. Maybe Tamiya can do the same.
Lately Tamiya has come out with new chassis’s, and not only all the old stuff. Maybe it can help kickstart the Tamiya interested for young people again, I really hope so.