It's interesting how to see how different countries handle the COVID-19 pandemic response. In Asia, virtually everybody is now wearing a face mask, sometimes hand-made due to supply issues, but in Europe and North America at least, I've seen authorities tell healthy people not to wear a mask at all, and reserve them to health professionals. I've even seen some nasty comments on Twitter complaining about people wearing masks at the grocery store (in the US) as they took supply out of health professionals.
I personally think this is madness for a disease that is known to transmit from