Why are some people so inconsiderate

In some cases, the best way to encourage considerate behavior in others is to show kindness yourself. In the book, Choosing Civility: The Twenty-Five Rules of Considerate Conduct by P.M. Forni, there are plenty of guidelines to help you become the most considerate person that you can be. Most of the rules laid out in this book involve respecting other people, and their time and space, appropriately.