I saw that study and it matched what I observe anecdotally around me. Millenials mostly have divorced parents and mostly feel that was a terrible way to grow up. So they’re waiting until they’re ready to have kids to get married to their long-term partner, and they’re approaching it with more of a sober commitment to stay together for the kids.

At the end of the day, marriage is a choice you make every day. Different cultures have higher and lower divorce rates largely based on how seriously they take that commitment.