Marriage laws–how broad should they be? Gay marriage is a current topic in many countries around the world, and it is likely that it will eventually become the norm in most Western countries. What other forms of marriage might we be prepared to accept? Polygamy is a form of marriage that is technically not legal in Australia, but is informally accepted. Should polygamous marriage be legal and if so, within which limits? How would the legal system need to change to accommodate polygamous marriage?