If masks work so well, then why didn't they just put them on the criminals in jail, rather than let them out of jail because of the Corona virus? Something is missing here. There is as much data out there showing the ineffectiveness of a mask, as there is the effectiveness of a mask. I saw someone the other day wearing one with an exhalation valve on it. What happened to the idea that wearing a mask was to protect others? Something about not wearing a mask was selfish? Not protecting anyone when your breath goes straight out of it through the valve.
Don't ask questions and just do as you're told.