New Census figures show a nearly tenfold wealth gap between younger and older households. A Stanford lecturer argues that much of it comes down to time. The reality is more complicated.

If you’re 30 years old and wondering why your parents’ generation seems to have all the money, a Stanford personal finance lecturer has an explanation: They’ve simply had more time to accumulate it.

Adam Nash, who teaches personal finance to engineering students, recently examined Census Bureau wealth datashowing that households headed by someone ages 65 to 69 have nearly ten times the median net worth of households headed by someone under 35.

That’s an enormous difference. But Nash argues that it isn’t necessarily evidence that older generations received a better deal.

In an October 25 essay, he created an imaginary economy called Equal Land, where everyone earns $100,000 annually, saves 10% of their income and receives identical investment returns. Even in that perfectly equal world, older residents accumulate dramatically more wealth because they’ve spent decades saving and benefiting from compound growth.

At an 8% annual return, people 65 and older hold more than 74% of Equal Land’s wealth. The numbers make a compelling point: An age-based wealth gap isn’t automatically evidence of unfairness.

But Equal Land leaves out the most difficult part of building wealth in America.

You Can’t Compound Money You Don’t Have

Nash’s model assumes everyone earns the same salary, starts working at the same age and has enough disposable income to save consistently. Actual households face different wages, housing costs, student debt, medical expenses and employment interruptions.

Homeownership is particularly important. Buying a house allows owners to build equity while potentially benefiting from rising property values. Renters can save and invest, too, but they don’t accumulate equity through their monthly housing payments.

And the differences aren’t limited to age. Federal Reserve research found that Black households held approximately $352,000 in average wealth at the end of 2024, compared with about $1.5 million for White households. Those averages are influenced by wealthy households, but the disparity illustrates why age alone cannot explain wealth distribution.

There’s another complication: Younger generations aren’t necessarily doing worse across every financial measure. The same Federal Reserve analysis found that millennial and Gen Z households had greater average inflation-adjusted wealth than Gen X and baby boomer households did at comparable ages. That doesn’t mean every young household is thriving, especially when averages can conceal substantial inequality.

Nash acknowledges these limitations. His experiment doesn’t claim to prove that today’s younger adults have identical opportunities to previous generations. It demonstrates why comparing a 30-year-old’s wealth with a 70-year-old’s wealth can be misleading.

And on that point, he’s right.

The mistake would be treating that mathematical explanation as the end of the conversation. Time helps money grow, but it doesn’t determine who earns enough to save, who inherits assets or who can afford to buy property.

Two people can spend 40 years working and arrive at retirement with vastly different financial outcomes. The difference isn’t necessarily how long they worked. It’s also what they were able to accumulate along the way.

The question isn’t simply why older people have more money. It’s whether today’s younger Americans have a realistic path to building the same kind of financial security.

Sources: Adam Nash, October 25, 2026 | U.S. Census Bureau, 2024 Household Wealth Data | Federal Reserve Bank of St. Louis, Household Wealth Research