I do have a reasonable knowledge of modern car safety features, and yes, high end (well, high trim level; these features are optional at additional cost on many cars I would call low end.) cars bought in the last few years have automatic braking systems that function reasonably well at low speeds, and that's a great thing that has probably saved many lives.
Certainly, if I buy a car again I will be sure to pay extra for these features
But these features don't make driving safe. These cars are not even close to being self-driving, and these features don't absolve the driver of vigilance.
Now, this doesn't apply to me ('cause I have a good job and can afford a recent car and can pay extra for the requisite options) but most cars still don't have those features. The vast majority of cars that are on the road today, and even many cars on the new-car lot don't have any sort of automatic-braking system.