Folks born in the 70s may have more feelings about video games being kid stoys than younger ones, but they probably also have really backwards ideas about, I don't know, fun in general? And that's probably signalling that there's some kind of fundamental personality mismatch or some unwelcomed views on masculinity and gender dynamics.
It might be a little harder to meet people, but it's worth sorting through the mismatches in order to find a compatible partner, even if it gets discouraging sometimes.
For what it's worth, I'm 40, and I not only still play video games, I still play the video games I loved when I was 5, and watch the cartoons that I loved when I was 10. My wife's not big into video games, but she definitely doesn't judge people for their preferred forms of entertainment.