I paid more for my car because of airbags. Because of them, I can't seat a kid in the front seat. "The back seat is the safest place for a kid to sit" you say? It's the safest place for my wife to sit too, but I don't make her sit back there. I don't get a choice in the matter because my usage is dictated by the government.
Same thing with seat belts. We have basically the same seat belts we had 30 years ago. They can't make those better? They must be so good they're also used in F1, NASCAR and Indy. Not even close. Government regulation has completely stopped any effort to make seat belts safer for regular drivers by making any such innovation a liability to whoever tries it.