> wearing a mask is not a 100% protection against getting infected
Most things are never 100% safe. Wearing a seatbelt does not guarantee you won't be injured in case of an accident, it's still something everyone recognizes it's a good thing to wear. I wonder what the tipping point is in terms of something being silly to do vs. it makes sense to do it for the general public. I would guess that social stigma plays a big role in it.