There's probably a bit of that, but I think we as a species don't naturally treat each other like we're all disease ridden lepers and to do so for a prolonged period of time is unhealthy and will have people unable to ever properly relax. as for masks, 1, they do next to f**k all & 2 so much of our communication is down to non verbal facial expressions , even in Asia it wasn't like people would wear them from 9-5 whenever they were out, it was only in crowded city places and even then it was never a majority that did so