cone said:
curious why you think a mask isn't effective at preventing a sick person from spreading germs
cuz the CDC explicitly says it is
Because people aren't hygienic, will still touch their face then other surfaces, will likely not wear it correctly, will not clean it regularly, etc. It may slow a bit what is spread via the air, but they're still breathing and plain masks don't prevent that air from escaping.
As I said, it may be marginally helpful but does that outweigh the costs of the masks? Maybe. Still seems more for morale than anything.
My wife's an RN and just chuckles when seeing folks walk around with surgical masks/gloves at the grocery store.