Which demographic group is primarily responsible for the aging trend in the United States?

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Multiple Choice

Which demographic group is primarily responsible for the aging trend in the United States?

The aging trend is driven by the baby boomer cohort aging into older ages. Born roughly between 1946 and 1964, this generation was exceptionally large, so as they move into 60s, 70s, and beyond, the share of people 65 and older rises substantially. That shift raises the overall median age and the old-age dependency ratio, influencing demand for healthcare, retirement security, and age-friendly planning. Other generations—Gen X, Millennials, and Gen Z—are smaller and younger at any given time, so they don’t move the population’s age structure as much.

The aging trend is driven by the baby boomer cohort aging into older ages. Born roughly between 1946 and 1964, this generation was exceptionally large, so as they move into 60s, 70s, and beyond, the share of people 65 and older rises substantially. That shift raises the overall median age and the old-age dependency ratio, influencing demand for healthcare, retirement security, and age-friendly planning. Other generations—Gen X, Millennials, and Gen Z—are smaller and younger at any given time, so they don’t move the population’s age structure as much.

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