Sociology
The Demography of Political Ideology: Cohort Replacement and Value Shifts
Quick fact
In the 1960s, the average age of the U.S. population was about 28; today it's over 38, meaning the demographic structure itself has contributed to a gradual shift in issue priorities, with older cohorts emphasizing economic security over new social issues.
Why this is interesting
You've noticed your grandparents hold different political views than you do. But why do entire societies shift their values generations later?