[majormajor]

Older men golf or (if not quite as old) play basketball. :) Physical games have much more immediate stamina limits, for starters, in terms of time-spent comparisons. Thinking more about golf, that one has more of an economic limiter than basketball or video games. Perhaps there's a dangerous sweet spot that games are hitting - cheap enough that you don't have to work a ton, attractive enough that you don't want to. Which would result in a different discussion of if that's good or bad.

Either way, you still have a primarily-male competitive activity being a huge thing for older demographics, which is interesting. The "is it upbringing or nature" question around sports participation by gender is an old one, my hunch is that video games is just the modern version.

The 30-to-40 generation is in the middle; gaming for a while was a much more in-person thing pre-universal-internet-access. So that probably resulted in different habits as life more and more interrupted the ability to throw LAN parties together.