This is partly an effect of cultural issues related to immunity and how it's perceived in most europe countries. Even putting aside the whole deliberate sharin

This is partly an effect of cultural issues related to immunity and how it's perceived in most europe countries. Even putting aside the whole deliberate sharing germs and force building body resistance, wearing a mask is seen as anti-social, somewhat selfish, weak and alarming. People's reactions to a mask is really ranging from "you shouldn't wear it at all, we're among friends (at work)" to "if you're that ill you shouldn't get out of your home and take a sick leave". There few middle ground, accepting wearing a mask just in a case, or for some benign infection.