There's no shortage of theories as to how and why today's young people differ from their parents.
As marketing consultants never cease to point out, baby boomers and millennials appear to have starkly different attitudes about pretty much everything, from money and sports to breakfast and lunch.
New research tries to ground those observations in solid data. The National Center for Family and Marriage Research at Bowling Green State University set out to compare 25- to 34-year-olds in 1980 — baby boomers — with the same age group today. Researcher Lydia Anderson compared U.S. Census data from 1980 with the most recent American Community Survey data in 2015.
The results reveal some stark differences in how young Americans are living today, compared with three or four decades ago.
In 1980, two-thirds of 25- to 34-year-olds were already married. One in eight had already been married and divorced. In 2015, just two in five millennials were married, and only 7% had been divorced.
Baby boomers' eagerness to get married meant they were far more likely than today's young people to live on their own. Ms. Anderson looked at the share of each generation living independently, either as heads of their own household or in married couples.
The chance that Americans in their late twenties and early thirties live with parents or grandparents has more than doubled. In 1980, just 9% of 25- to 34-year-olds were doing so. In 2015, 22% lived with parents or grandparents.
Millennials are also less likely than boomers to be living with kids — and to be homeowners.
It's easy to look at these figures and say millennials are lagging behind their boomer parents. However, even as young Americans delay marriage, kids and homeownership, they're ahead of their parents by one measure: education.
There's also no sign that young people today are lazier than three decades ago. In 1980, 74% of baby boomers reported that they had worked in the past week, the Census data show. In 2015, slightly more millennials, 77%, said they'd been to work in the past week.
Score another one for millennials.