I wonder if there’s a discrimination case in there? Obviously it would be a bit overkill, but it might get the message through to companies to train their staff better if they think they might get sued for being so insensitive…
It’s mainly an emotional intelligence thing IMO, thinking sensitively about how to treat other people and understanding that something they’re doing which you don’t like may not be deliberate and the problem may actually be your own expectations that everyone else should act according to your own unexpressed ‘rules’.
Sadly emotional intelligence can be a difficult thing to train into people and, like commonsense, it’s distributed amongst the population unevenly!