A lot of it is also because gaming as a medium has not kept up with the actual age group of its users on lots of genre. They are still stuck in this fisher price, its a toy and comic book, Saturday morning cartoon show vibes that you simply won't see much games take on the tone of a Narcos, Breaking Bad, Mad Men etc. Gaming simply isn't there yet and it seems many are scared to make that leap of making a game for an older audience and keep trying to force in this toy like mindset that they'd never fucking factor in a film, show or book, yet as soon as they are writing it for a game "make sure no ones feelings are hurt here, make him die by saving 100 babies" lol The medium simply isn't mature enough to handle a lot of that reality and instead seeks this kid like or comic like approach where the want all things to be fair in life, no one's feelings hurt, everyone gets what they want at the end etc. That simply isn't how real life is, but when you have a medium so use to this shit, anything different is seen as some attack on "gaming" instead of just moving it forward or allowing for different themes.
I just don't know if the medium is mature enough to handle a theme about rape, babies getting killed etc They always want this fake as fuck silver lining, good guy makes it as the hero in the end saving everyone, all is well lol Real life simply isn't like that all the time, I think any game seeking to do this will have gamers loose their shit and you'll see several pages of them fucking crying over shit, that you won't see from films, books, televisions etc as they are used to this concept. Gaming is in a state were you have take the bottle away and take the training wheels off lol Its clear its not growing with its install base and finding games that fit adult themes and realty are becoming more and more difficult and rare.