Droplets through the air (that land on the second parties nose or mouth) is not what Hopkins is talking about. The virus is in respiratory droplets. If you sneeze on something its contaminated. If you touch your nose or mouth and touch something its contaminated. etc. If someone touches any of those surfaces (hard to avoid in a shared space with door handles etc) they risk infection.
In daily living you touch door handles, gas pump handles, elevator buttons, railings, subway hang straps and bars etc. Even before covid, how many people sneezed on you? Far fewer.
If we just were worried about folks sneezing on us we could stop washing our hands.