By 2020 the number of people ages 60 and older will be greater than the number of children under age 5. The proportion of the world’s population over age 60 will double between 2015 and 2050, to 22 percent.67 Few countries are prepared to cope with this demographic transition. Without adequate health systems, social protection, and work and retirement schemes in place, older people are deprived of opportunities to maintain and expand their capabilities.