People are always so quick to jump on the “it’s depression” train, but it can also be totally normal for one’s tastes and interests to change over time.
I used to absolutely love games as a kid and teen. But as an adult, I just have a hard time getting into them anymore. I often seem to have fun watching people play games instead of experiencing them myself, and that’s ok too.
It’s like…after a day at work, I just want to unwind. Gaming requires a degree of effort and can even be stress inducing. So I’m just not super into it anymore. I try to get into games now and then but usually I can’t be bothered.
I mean, you’re right that for some people, it can signal depression. For others, it just signals growing older. Such is life.