I'm surprised apple haven't found a better way of dealing with the plethora of content/apps people want to add to the store in a better way. The "mature" ratin

I'm surprised apple haven't found a better way of dealing with the plethora of content/apps people want to add to the store in a better way. The "mature" rating seems like something they would have had from the start, ala iTunes. It seems like there are plenty of violent or not-quite pornography materials that would make Apple and the developers plenty of money from consenting adults. Think of the filth that springs from the mouths of rappers. I can't think of much literature I've read that tops that for sexual content, violence and misogyny.