Earlier quoted context omitted.
It's minutiae to be concerned when someone who just tested positive for covid is talking to you with their mask down?
Yes, because for schoolkids, Omicron is literally a cold, if that. The other variants, call it a bad cold. The only reason to stop them catching it is to stop them spreading it. Had someone three years ago been that concerned about someone with a cold, yes, that would be minutiae.
They may be teenagers, but they're not wrong to attend to the minutiae; whether for selfish or for social reasons, that awareness may be all that is keeping them and their loved ones alive. It is cruel and unjust and wrong that they alone are attending to the minutiae of masking, but here in the United States our social support systems often require them to bear that responsibility, as the adults responsible for them often do not.