I found a few articles that back up that assertion. There are a few interesting points in this one: https://www.brookings.edu/research/cohabiting-parents-diff

I found a few articles that back up that assertion. There are a few interesting points in this one: https://www.brookings.edu/research/cohabiting-parents-differ-from-married-ones-in-three-big-ways/ https://www.brookings.edu/research/cohabiting-parents-differ... Cohabitating adults are less likely to stay together in every country where it's measured. In the US, college educated non-married parents are 2.5x more likely to split before their first-born turns 12.