More people around the world are living together or remaining solo instead of marrying.

One of our 10 Trends for 2012 was Marriage Optional: More people around the world are living together or remaining solo instead of marrying. Pew reports this week that 1 in 5 Americans age 25 and up have never married, a fundamental shift since 1960, when only about 1 in 10 could say the same. Millennials are especially ambivalent: Two-thirds of 18- to 29-year-olds surveyed by Pew agree that “society is just as well off if people have priorities other than marriage and children” vs. 53 percent of the next generation up (age 30 to 49).

Europe is seeing a similar move away from marriage, driven by “austerity, generational crisis and apathy towards the institution,” notes The Guardian. It says weddings are at historical lows in some nations; last year Italy recorded the fewest since World War I. For a look at how changing marriage patterns are affecting families, see our report Meet the New Family.

Image credit: JD Hancock