👶 Lesson 28: Youngest vs Oldest

Median age means the age in the middle: half the population is younger, and half is older. A low median age means many children and young adults. A high median age means more older people.

Many of the world's youngest countries are in Africa. Niger, Uganda, Angola, Mali, Chad, and Democratic Republic of Congo have very young populations. This creates huge needs for schools, jobs, housing, and healthcare.

Japan, Italy, Germany, South Korea, Greece, and Portugal are examples of aging societies. These countries often have low birth rates and long life expectancy.

A young country needs schools and jobs. An older country needs healthcare, pensions, caregivers, and workers to support retirees. Age structure changes what governments must build.

Countries age when people have fewer children and live longer. This often happens as countries become wealthier, more urban, and more educated.

Young populations can be a huge advantage if children get education and jobs. Without opportunity, a young population can create pressure. Demographics are powerful, but policy matters.