I am 48 years old.
And part of me resents it.
I was doing all this far longer than you (and by 'you' I mean anyone younger than me). I was doing it before you were born. I was doing it years before you even knew it existed. I was doing it before it was "cool". I was a hipster of nerd/geekism. And you are trying to take all that away by liking the things I like.
I was playing D&D before you knew what an rpg was.
I was watching Doctor Who before there was a Christopher Eccleston or David Tenant.
I branched out and was playing non-D&D games before you knew what D&D was.
I was watching Star Trek before there was a Captain Jean-Luc Picard.
I was experimenting with new system mechanics such as Target Numbers while you were learning how to play D&D.
I was reading Tolkien in a first printing and realize that he invented the cliches.
I was focusing on story-telling and narratives while you were discovering there were other rpgs than D&D out there.
I was doing all this before you came along and started enjoying it.
Sometimes I feel like these young people are taking my memories and making their own, in their own way. Like, somehow it lessens what I have done before. That my niche activity is no longer a niche and now a part of society. Like, I am no longer special in my choice of activity. Which, of course, is silly. No one can infringe on another gamer. RPGs don't belong to any one generation of people, it belongs to everyone - that is a fundamental concept behind rpgs.
Honestly, I kinda like the fact that what I do is not as stigmatized as it once was. I like the fact a younger generation is enjoying the things I enjoy. Maybe I'm not behind the times; maybe the times are catching up to me.
But, remember, I still did it before you.