The pejorative term "political correctness" was adapted to express disapproval of the enlargement of etiquette to cover all people, in spite of this being a principle to which all Americans claim to subscribe.
Judith MartinThe idea that people can behave naturally, without resorting to an artificial code tacitly agreed upon by their society, is as silly as the idea that they can communicate by a spoken language without commonly accepted semantic and grammatical rules.
Judith MartinEtiquette is about all of human social behavior. Behavior is regulated by law when etiquette breaks down or when the stakes are high - violations of life, limb, property and so on. Barring that, etiquette is a little social contract we make that we will restrain some of our more provocative impulses in return for living more or less harmoniously in a community.
Judith Martinpeople, in forming their opinions of others, are usually lazy enough to go by whatever is most obvious or whatever chance remark they happen to hear. So the best policy is to dictate to others the opinion you want them to have of you.
Judith Martin