I can remember being in California when seatbelts were mandated for new cars.
On the little secondary highways, the police would have cars passing through a check station. If your older car didn't have a seatbelt, you would be asked if you wanted a set.
For $10 I think it was, a couple of guys showed up, installed the belts in about 3 minutes! I was on my way and thinking, "what just happened?!"
Of course, it took me about 10 years before I became habituated to them. In my driving career, there have been 4 accidents, 2 involved nothing but bumpers, one - a bent fender.
Then there was that rollover in heavy snow when I found myself at one point - lying on the hood, still holding onto the steering wheel.
Steve