In order to function properly, clans require one or more forms of leadership. This is necessary because clans must have one or more means of making decisions in order to progress. If there was no leadership, there could be no clans, because nothing could be decided. Leadership does not necessarily mean one or more people rule over the clan. In fact, many clans are run by a form of democracy, such as representative democracy, in which certain elected clan members vote to make decisions for the clan, or direct democracy, in which all clan members vote to make decisions for the clan.