I'm not sure it's actual regulations, but the Euro NCAP safety tests requiring all these "features" (like not remembering when you turn them off) to get a max score.
And who doesn't want the safest car?
how much have cars safety improved in terms of crashes, airbags, etc, versus the robot will stop the crash?
I grew up in/with cars which would score 0 (more like -3 to -5) and made it to adulthood, so I have a feeling that these features are not strictly neccesary.
At the same time what if it saves at least one life a year? (same goes for riding with/without helmets)
People that have a perfect driving record.