BobF
All that is req'd is some common sense and decency for both speakers and listeners.
Unfortunately, by definition, "common sense" doesn't really exist any more. When I was growing up you KNEW what was the right thing to do (whether you did it or not was a totally separate issue! LOL). Now, there are so few ethics, morals and family values, that most of the younger generations don't have a clue what "common sense" means. I feel we've definitely lost something important.
As for my opinion about so-called "Political Correctness," I consider it a big part of the problem. Kids are currently being raised in artificial pampered worlds where all they are learning is that they're supposed to be put on a pedestal, they're ALL the best and everything should be given to them without them having to put out much effort. When everyone is treated as a winner without having to work through challenges and failures, they are completely unprepared for "real" life and you end up with events like the latest school shooting that happened down the road from me (about four hours south).
Interestingly, it just occurred to me that what is happening to young people now is very similar to how current music is produced! Back in the day, making music required a lot of effort to understand theory, learn one or more instruments and suffer through ear training - all before trying to figure out how to save performances for future listening. Also, music had a dynamic to it that's completely lost now. You had enough headroom to have peaks and valleys which made the music far more interesting and fulfilling to experience. Now, just like in the rest of the younger generation's lives, music has become too easy to make (with mediocre results) and the final products are then squashed until there's no life left in them... Sad.