The purpose of any game is to enable you to play it within the game rules set by it, not to enable any sort of gameplay which occurs to you. I don't think CDPR is making a game which is about including any and all types of content into the game just because this is a "mature" game.
They are making a videogame on the PnP game CP2020, and when people play this game they don't necessarily play it to act out specific scenarios.
Yes, there can be instances which are related to the awful realities of our world, but there's a difference between making the player acknowledge the existence of something in a game versus requiring ,or providing a way for, the player to get their hands in that kind of stuff.
I mean, TW2 showed an instance of rape, but it was done in a way which complemented the story and the gameworld; this kind of inclusion of difficult subjects is understandable, and that's all I would expect from any game, not just CP2077.
It's not necessary that a "mature" gameworld should deal with all the intricacies of our world. A game is a condensed microcosm, after all, and it might not have all the time necessary to do justice to some subjects; the game can be misconstrued to be something it's not if it fails to get its point across.
The game should have children, it would be unnatural to not have them. But really, it doesn't make sense to add anything if it doesn't complement the storytelling and gameplay.
