Good point, and I should have clarified. Unless a specific size/brand became unavailable, individuals only needed to be fitted upon being hired (regardless of how long they had been in the field). I can't (and shouldn't have) implied that the policies and schedule were universal; this was just the policy where I worked.
There are some sales personnel where I am now that wear these sparkly masks that have a thin enough mess that you can see their mouths ("so customers can see their smile"). I bristle a little whenever I see them. I guess to some (very, very, very small) extent, something is better than nothing, but... yeesh.[...]we should stop pretending that our Etsy masks are about anything more than Karen's feelings.
ETA: Just to clarify (reiterate?), basic dual layer cloth masks, and cheap disposable "surgical" masks that can currently be bought in most stores are effective and preventing transmission.