The Stare Decisis ensures that the courts will take previous cases into consideration when making a ruling or decision on a case that is similar. It's to allow fairness in the courts. This can be beneficial because people can have an idea of what to expect before heading into the case. It can benefic the U.S. Legal System because it can make rulings fairer, instead of allowing the huge vary in outcome of cases that are similar based on the judge handling it. It would provide a more stable ruling system. Allows for change as society goes on as well