1) People's voices become muffled
2) I can not read their lips
3) Emotional-facial cues are much harder to pick up on.
This cannot be a permanent state of affairs.
In the new future, I might just start wearing masks on the subway in winter by the default. The cost is very low and the benefit is moderate.
Corona's have been with mankind since before history. They never go away and its a matter of time before you are exposed to one of the coronas again.
Believe it or not, some of us don't like social distancing and mandatory masks in perpetuity. If we had spent more money on developing these kinds of vaccines years ago, we might not be in the situation we are in now. If you like being isolated then be my guest, but don't be on a high horse about "just" wearing masks, and so forth at this point. We all get it. Yet people continue to get sick and die.
Is that because the interventions (masking, social distancing) are de facto ineffective, or because a critical mass of people simply ignores them?