Quite a few PC based games used to have this, including most Epic games I believe. While of course it doesn't affect the rating I always presumed the goal was to provide choice for those tho didn't want bots, swearing, etc. or violence.
In theory a good idea but of limited practical impact I always thought.
What would be interesting would be ability to set age filters on the console and have games have multiple levels of violence, profanity.
In theory this could allow some games to have multiple ratings and sell more wildly, but I doubt you'd even get this to fly due to confusion, etc.
So it sounds nice and might help a few younger teens convince their parents to let them play using the filter (which they'll of course turn off as soon as they can!) but I imagine that's about it.
Try to be reasonable... its easier than you think...
