Once cash penalties and insurance issues became a thing, it sucked all the holdouts on board.
I remember getting in an accident soon after seatbelts were implemented. My mom was driving. She proudly told everyone, “If it weren’t for the seatbelts, it could have ended very differently.”
I wonder how many people said something similar then, but would say something disparaging now about masks.
Politics have taken control of these simply non-political matters. If libraries, Interstate highway systems, dire departments, etc were announced today, that same population of non-maskers would scream “SOCIALISM!!!”