Why is age structure important for educational planning?

Correct answer: It indicates how many children and youth may need education services

Age structure shows how many people belong to different age groups, especially children, young adults, working-age people, and older people. This information is essential for planning education because children of particular ages will soon need places in primary and secondary schools. Planners can estimate the required number of classrooms, teachers, textbooks, transport facilities, colleges, and vocational programmes. They can also anticipate future demand as children grow into higher grades.

A country with a large child population may need to build schools and train more teachers before overcrowding occurs. A smaller child population may require different planning, such as combining facilities or focusing more on higher education and skills. Therefore, option A directly explains the importance of age structure. Rainfall, river length, and soil fertility are physical or environmental facts, not measures of educational demand.