I would love to be able to buy a car without all that crap on it.
If you know how to drive you don't need all the extra maintenance cost that crap brings. You don't need anti-loc brakes if you are smart enough to "pump" the brakes when skidding. You don't need it if you are smart enough to know the worst thing you can do is stomp on the brakes in the event of a tire blowing at highway speed. (remember the Ford Explorer rollovers)
I remember back when they started the whole mandatory seat belt thing. My then 5 year old niece gave me hell for not buckling up, I told her I had a better solution, "just don't run into anything". My sister in-law still has a problem with that.
I could see being able to choose some of these features. Antilock brakes and traction clutches, when well implemented, are almost miraculous; I can vouch for that. But there’s a way you can switch at least the traction off if you don’t want it.
Seat belts are usually a smart idea, and probably would have gotten popular on their own if the legal beagles hadn’t thought to be imperious about them. Gain something like an extra insurance coverage or lowered deductible during a crash if you had belts on, and most people would put the belts on.
And dear Heart, quite often the problem is not that you ran into something, but something ran into you. Which is less easily controlled. Again, private world solutions are usually better. Let insurance policies reflect belt usage and people will wear the belts.