Someone who hasn't bought a new car in the last couple of years probably wouldn't be aware of these features. Also for some reason car dealers, at least in the US where I've been buying cars recently, don't seem to highlight these features too much. Perhaps because they're not a way for the dealer to make more money. It can also be quite hard in my experience to get a straight story on exactly what the safety capabilities of a given car are. E.g. will it just warn of an impending collision or activate the brakes? Does it drive the steering system on lane departure or just warn? When buying a car recently for my new driver son to drive I had to pretty much try driving it into things to verify the features were implemented as expected and in one case (active steering on lane departure) I didn't know the car had the feature until after taking delivery.