Finnet, you are one confused individual. First you say this:
marriage is a failed institution
look at the divorce rate look at child abuse look at spouse abuse look at murder/suicide look at a whole range of social problems linked to the family and the home
and then you say this:
what is the difference between having a family and living together by choice and getting married and doing the same thing?
marriage enables nothing and prevents nothing
So does marriage make a difference or not? First you say it causes socio-economic issues and then in your very next post you say it does not. Green confusion.