Social norms are the social etiquette's that people follow to be able to predict and understand the other people around them. It also shows us how we should properly act in a society by example of others. The social norms in a society also tells us what we are and aren't are allowed or supposed to do. Every place has it's own social norms and the differences between multiple cultures is very big. You can have things that are considered normal in some cultures but not acceptable or normal in others such as physical contact. While we shouldn't follow everything everyone does because we have to be an individual it is important to have common social normal's because it shows us how to communicate with our peers. We are also beings who need contact with one another to survive and prosper in the society that we live in so it's very important that we have these things to learn from.