I was shocked to hear this. Not least of all because my car shouts at me if I pull off the drive without my belt on :)
The latest Government Casualty Figures for 2017 have indicated that the number of car occupants who were killed while not wearing a seat belt reached the highest level on record. Up to one in four deaths in a car would potentially have been prevented if a seat belt had been worn. If this is correct then it is something which is a needless waste and we need to adopt the same harsh penalties as using a mobile phone with these people who cost society so much money through selfish acts. So why not have madatory disqualification for drivers who do not wear a seat belt or ensure that their passengers of whatever age are doing so. By the same token we should remove many of the exemptions given to drivers not to wear a belt.