Etiquette is a signal to others that you are a good person and follow the rules of society. This is extremely important in a world with an increasing population

Etiquette is a signal to others that you are a good person and follow the rules of society. This is extremely important in a world with an increasing population, in which you only have a few seconds of contact with most people. In these few seconds, people judge your character based on the only information they have available: 1. How you dress 2. How physically fit you are 3. How you conform to societal standards I would argue that most people should not judge a person's character by 1 and 2 (although they are good measures of affluence). What is left is number 3. If you are someone that breaks some small societal standards, how do I know you won't break larger ones? If we don't share the same assumptions on how we should behave, how can I possibly feel safe around you?