Is 30 the New 20?

I saw some interesting data at Market Watch suggesting that “Maybe 30 is the new 20”:

Data released recently from the Census Bureau show that 30-year-olds today — as compared to 30-years olds in 1975 — are less likely to have hit many of the milestones that have come to define adulthood. In 1974 three in four 30-year-olds had married, had a child, were not enrolled in school anymore and had lived on their own; in 2015, just one in three could say that….

This isn’t the first data to show that millennials — generally defined as people ages 18 to 34 as of 2015 — are living more like the younger people of yesteryear. Living with your parents is now “the most common young adult living arrangement for the first time on record,” a survey by the Washington D.C.-based think tank Pew Research Center. …

One reason many millennials are delaying many of these “adult” milestones is because of the burden of their student loan payments. More than half (56%) of millennials versus just 43% of adults overall with past or current student loans say they have delayed a major life event because of these loans, a survey released last year by personal finance website Bankrate.com found.

Millennials are also more likely to be in school in their 30s: 8% were enrolled in school at age 30 in 2015 versus 1% of 30-year-olds in 1975, according to the Census Bureau, which may also delay some of these milestones.

Okay, I can understand not getting married but living with one’s parents in your 30s can’t be the best arrangement. What do you think?