Ronald Inglehart, one of the world’s most influential political scientists, spent decades compiling cross-national survey data that tracked shifting values across dozens of countries. His work revealed that social change often appears to be a matter of evolving public opinion—but in fact, it’s more often the result of generational replacement than individual transformation.
Inglehart's findings suggest that people rarely change their core values after age 20 or 25. So when a society moves from widespread rejection of immigration and LGBTQ rights to broad acceptance, it's not because individuals changed their minds en masse. It's because older voters with more traditional views passed away, and were replaced by younger generations with more liberal, secular, and self-expression–oriented values.
But what happens when life expectancy rises and birthrates fall? You get fewer new voters entering the system and more older voters staying in it longer. That slows the pace of change—not because beliefs are getting more rigid, but because the demographic shift that drives change is happening more slowly.
Inglehart once put it this way:
“The most important political change is not that people change their minds, but that people with different minds replace them.”
In short: Social progress depends not just on new ideas—but on new people. And in aging societies, even progress has to wait its turn.
But maybe it doesn’t have to.
Perhaps the greatest challenge facing modern societies is to create for their older citizens what public education once did for the young: institutions and experiences that stretch, inform, and enlighten the mind—long after graduation. A democracy of lifelong development might not just slow decline. It could accelerate renewal.
