RW > But since when did masks and vaccines start to work only based on what someone else does!? You are openly admitting that the mask and vaccine is not effective in that case!
Do you really not understand concepts of probability and virus propagation? Each of the tools protect to a certain degree. If you are not careful, you have a chance to pick up the virus and expose others. If you are in a prolong close contact with someone, say live in the same apartment, chances go higher. If someone is not healthy or old, their chances are still high even if they are vaccinated and masked. Say, you are working in a nursing home – would you still not do anything? test? mask?