Its just that morality is a group of concepts and beliefs by which an individual determines whether his or her actions are right or wrong.  these concepts and beliefs that are commonly the focus of arguments for and against the issue. Because everyone is brought up to believe and hold valuable different things, it is most difficult to say in moral terms what is right and what is wrong. The determination of what is right and wrong is what we rely on our legal system to provide, since often, we cannot agree in whole, in moral terms. Some states have already addressed the legal issue of same-sex marriage and others have not.