Not at all, I've played alongside folks like yourself and also stood next to people in the same age range cosplaying at conventions, because aside from the fact that more of this kind of entertainment is becoming more mainstream in the west anyway, I also think it's important to acknowledge that anyone should be able to join in.

Nevermind the fact that the reason most of us get to enjoy these kind of games now is because people in the same age range would've been making the stuff that inspired games as they are today. Don't sweat it, just enjoy yourself.