The average age at first marriage has risen significantly over the last 50 years. People today are waiting 6-7 years longer to get married than previous generations. Between 1950-1960 the average age of men at first marriage was around 23 and the average age for women was around 20. Today the average age for men at first marriage is around 29 and the average age for women at first marriage is around 27.
Divorce rates have been fairly steady but the number of both men and women who have never been married has steadily increased.
https://www.census.gov/data/tables/time-series/demo/families/marital.html
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