You assume masks filter out 100%. Most people wear masks with less than 50% filtration and some wearing single layer polyester actually aerosolized droplets and

You assume masks filter out 100%. Most people wear masks with less than 50% filtration and some wearing single layer polyester actually aerosolized droplets and make them worse than not wearing anything. People believe that aerosols and droplets behave the same way - a droplet may splash into a face shield, but aerosols don't behave the same way and won't hit the shield at all.