I disagree. There are tons of puzzle games which can be played by anyone. Lot of e-sports focused games can be played fast like Rocket League. Point and click games are still alive and kicking. Things like "Long live the queen" or "Black Closet" can be played in 30mn sessions.
But yeah, that's not AAA games so when you have to check some game store and not expect ads to get drilled into your eyes about those games. You have to open Steam or GoG at least one time.
They don't need to dig through pile of barely reviewed games and genres targeted at niche fans (which usually means more hardcore taste in some regard). Any game can be played by anone, technically speaking.
Not sure why puzzles would be the thing for other demographics. However, assuming it is, Steam sux for finding good puzzle games. It does not really allows you to distinguish puzzle from rpg or adventure with a bit of puzzle bent.
Playstore much less so for that matter, but then again, steam audience is quite hostile toward games that seems to them too much mobile like. It is ok, it is their playground, it is not like west would have millions of retirees waiting to buy on steam.
Which is back to my point. Culturally, in the west, games are meant for and consumed by much different demographic then movies.
Mostly because western video games seems to be tied to one demographics. Both culturally and business wise. In Asia, you have games for young people, games for old people, games for stereotypical boys and stereotypical girls. For people with a lot of time on their hands and for workaholics quick playing on their way to work.
I don't means just by themes or story lines. Witcher may have adults themes, but try to play it while having full time job and family. A game review written from point of view of someone employed is almost guaranteed backslash with a lot of yelling about "not a gamer" and reviewer not being qualified - because the review would have to be done from point of view of someone with time limitations.
While there are easy to find books and movies for adult employed audiences, it is not nearly the same with games.