GTA 5 has proven that kids and young adults like mature content. I say, if you're old enough the play this game, you're old enough to read my books.
To this day (July 2022), it is still the most popular video game. And say what you want about GTA online, but it's still fun to play.
Now, I'm not saying that out of control sex and killing is okay. In fact, I think parents should play these games with the children and explain some things to them. However, the world has changed. Kids have changed.