Our new world of classical music concerts

The line in the men’s room was to wash hands, not to use the other facilities.  During the concert, there was remarkably little coughing compared to usual times.  Is this because?:

1. The coughers were self-quarantining at home (there were more empty seats than usual).

2. Potential coughers didn’t want their seat neighbors to think of them as infecting pariahs.

3. Potential coughers abstained for fear of having to think, if they are coughing, that they might have coronavirus.

In any case, the elasticity of coughing with respect to self-reputation is higher than I had thought.

https://www.youtube.com/watch?v=y8-nWq6pqag

Yana and I were pleased to have watched from a private box (to be clear, we had a private box because the other people did not show up).