"Look, our cars brake for you idiots now! Just go ahead and take a nap while driving, because apparently you do that already anyways! Soooooooo safe! These new braking systems never malfunction, so go ahead and crack a beer, it's gonna be a long drive! And ladies, there is a full make-up desk/mirror setup option available."
I have never been in a situation where I needed my car to brake for me, lest I hit a car full of orphans or some meandering kittens or some such thing.