Cohabitation and divorce In August, the National Marriage Foundation released a contentious study suggesting that cohabiting couples pose a grave threat to the welfare of children. The practice of an unmarried adult couple living together without ever legally formalizing the relationship is far from new, but has become increasingly common. However, this study argues cohabitation is prone to instability, resulting in more break-ups than marriage. Many disagree with the central thesis of the stud...   Read more ...