Why does marriage still exist? Should it be abolished?
I really don't see what the point of monogamous marriage is in the 21st century outside of legalities and tax advantages.
Society will no longer treat you as an outcast if you have extramarital affairs or if you have kids out of wedlock, so needing to marry to procreate is out of question.
Traditional gender roles are slowly being eliminated as more and more women pursue careers and put-off having children. Schools and daycares seem to be tasked with raising one's kid(s).
I saw on reddit that unmarried couples living separately have the highest levels of satisfaction/happiness while married couples living together ranked amongst the lowest.
You don't need to marry to have kids, have a soul-mate, etc, so what's the incentive?
Gay-marriage almost seems redundant. Just eliminate the concept of marriage altogether and allow the legalities (POA, Inheritance, Wealth sharing, etc) be decided by contracts or whatever.