By now most people who pay attention to travel, or who are traveling, know that U.S. airlines by and large require passengers to wear masks. Allegiant is an exception.
Here’s an observation, though: they do not provide much guidance on what constitutes a mask. One man flying Spirit Airlines stuck womens underwear on his face and called it a mask.
I’ve even suggested pulling an eye mask out of an old business class amenity kit, it works as a mask.
But there’s one other observation, airlines do not provide much guidance on how you’re required to wear the mask. If an eye mask is a mask, does it count if you’re using it to cover your eyes as one man did, as shared by via Passenger Shaming
Potter Stewart famously said of pornography “I know it when I see it.” But if you’re going to make a rule – the FAA and TSA today cannot legally mandate masks – you need to clarify what constitutes a mask and how it must be worn. Airlines instead are following the ‘know it when they see it’ approach, or more likely see no evil, hear no evil and in many cases not enforcing the rule at all.