Nearly 60 years of driving, plus a stint flying about in Navy a/c, topped off by stopping for what looked to be a "minor" accident the other day in which a pair of kids and an adult, unbelted in the back seat, were injured, has firmly implanted "belting up" to me. It took a while, recalling the first seatbelts I recall, in a '56 Ford, IIRC, but experience and the "odds" altered my behavior.
As for NY (and NYC), able and willing to fill statute books with inexplicable trivia, I guess they just missed one actually likely to reduce death and injury. Having one been bounced off the front seat back and Plexiglas shield of a NYC taxi, I reach for belts there, too.