And the health and safety of adoption.<quoted text>
I accurately note that the cross cultural social construct of marriage effectively enhances the health and safety of procreation.
And the health and safety of 2 people who have no intention of bearing children.
Marriage as we know it today as a legal contract, same sex and opposite sex, with children or without children, enhances the health and safety of the people who are married. There are many benefits of marriage, and there may be drawbacks to being married, depending upon the individuals involved. The basic question is, "is the legal contract of marriage being carried out equally for all concerned". The answer is, "yes in some places, and no in others". And actually the concept of religious marriage is actually being carried out somewhat equally, as some religion permit it and others do not. A reasonable balance where religion is concerned.