There are pros and cons for either demographic: whilst being older may be ideal since not only you bypass age restrictions, you also have the capability on purchasing it with your own money without having to ask parents for that given that you have employment and recurring income. Gaming as a kid gives more time without having to dwell much on responsibilities that adults have to worry about but at the same time are held by school.
As an adult I finish more games. I have more patience and there’s a lot of things that are better today than when I was a kid (level scaling/difficulty scaling is definitely one, and so is the art).
But I miss storytelling. I miss game mechanics that worked really well but we’re based on the limitations of the hardware and software available at the time. I miss having to explore because there were no walkthroughs or guides or anything.
So I think perhaps gaming has gotten better, but my experience with gaming isn’t as good now as it was when I was a kid because I have something to compare it to and it can’t beat my nostalgia.