Picture the scene. You are on a crowded train or bus and someone sneezes. Everyone shifts ever so slightly away from the sneezing person only for someone else to cough loudly. Again there is a largely futile attempt to move or turn away from that person.
This happened pre-pandemic. No one wanted someone else’s cold on public transport or in the office and the same is even more true of catching COVID-19. Mask wearing will no longer be a requirement in most of the UK soon. The Government in England has gone further. It will no longer be a legal requirement to self-isolate for five days following a positive COVID-19 test and tests will no longer be free.