Exactly. I got into an argument with a leftist about that and how these homemade cloth masks really will not filter out the virus or keep you safe But was told “any little bit helps, and even if it doesn’t it shows that you care about me.”
To get into a 'mask mandatory' store, I stuck a kleenex under the nose bridge of my glasses long ways so it hung down covering nose and mouth. Soon as I cleared the doors, back in the pocket it went.