Idk, video games are absolutely mentally stimulating, but it's less fulfilling than a variety of activities.

I did not say you shouldn't play video games at all. But you miss the total picture of an activity like bird watching. Bird watching involves actually getting up, getting dressed, getting you gear and camera ready, and getting out into the "real world" to do. Often with groups of other like minded people enjoying the hobby. And not sitting on your ass in a room alone for hours on end.

It's about being involved with the outside world and the physical effort interacting with other real in-person humans that matters. As a medic I was paged out at times to people who were lonely and just wanted someone - anyone - to actually be with and talk to. Sometimes they would even have a suitcase packed and ready for the trip to a hospital. Playing a video game online won't give you the same social interaction as someone actually being there with you.

And now being old myself, I understand even more just how important it is to have regular physical social interaction for good mental health. And just like sitting alone on a bench in a shopping mall, a video game lobby or team match isn't quite the same thing.

Yeah the rest made sense but that bit. Games can be extremely challenging much more so than any other mental activity you'll end up doing.