Yes. In January and February, we were "meant to" all keep traveling, spending, going to conferences, and parades. I'm not sure how a passive "meant to" helps. A

Yes. In January and February, we were "meant to" all keep traveling, spending, going to conferences, and parades. I'm not sure how a passive "meant to" helps. And we were all "meant to" not wear face masks, until just now. These things are common sense. If you don't believe a face shield will help, why bother sneezing in your elbow? We have three modes of potential transmission: 1) Large droplets, where face shields increase the effective distance from others. 2) Contact, where faceshield prevent you from accidentally touching your face. 3) Aerosol, where faceshields don't do a thing. But reducing 2 out of 3 modes of transmission for a buck or two makes complete sense.