I think I'm right in saying the government has had to extend the grace period a bit. I am like you re the wearing of seat belts. I was once in the back seat of a car driving south along Highway 1 near Monterey in California when the driver had to brake suddenly to try and avoid an idiot doing a U turn. We slammed into his side. There were seat belts in the back and I was not wearing one. Surprisingly I only had superficial scratches, whereas the passenger in the font seat had severe bruising from the belt and had to spend a night in hospital!