Again this is about "regular paper masks" -- not specially rated masks such as N95.
Also, it dodges the question of - "What if, being adults, we train ourselves not to scratch our face (in view of the seriousness of the issue)? Will masks help then?"
Also, it dodges the question of - "What if, being adults, we train ourselves not to scratch our face (in view of the seriousness of the issue)? Will masks help then?"