In fact masks are an effective protective measure against COVID, as they have been against other diseases. Please remember that in the 1918-19 influenza pandemic, masks were a common public health measure that helped get that pandemic under control.

Does anyone think that it is healthier to inhale someone else's mucus micro-droplets than it is to avoid such inhalation?

Here is one of many videos that show how masks work.

https://www.boomlive.in/videos/fact-file/expl...ssion-9010