We were hiking in Glacier National Park last week and about 20% of the hikers were wearing masks. In a wilderness with 30 mph winds most days! Most appeared to be hipster doofus-types from the West Coast. Some were older people who looked at you like they had seen a ghost when you came around the corner. I ran out of snide comments.
Back in July I rand into a group hiking wearing masks, face shield and gloves.