Final answer:
The age structure of Canada in 2030 is expected to show an increase in the proportion of the population made up of older adults (65+), aligning with trends seen in high-income nations and reflected by similar demographic changes in the U.S.
Step-by-step explanation:
Assuming current trends continue, the age structure of Canada in 2030 will likely show an increase in the proportion of the population made up of older adults (65+). This prediction is based on a continuing trend seen in other high-income nations and is supported by the demographic information provided for the U.S., which reflects similar patterns in developed countries. The provided data indicates a significant aging of the population, with a notable growth in the elderly demographic and a decrease in the proportion of children and adolescents.
Furthermore, trends from historical data show an aging population with the elderly population increasing in size. More specifically, the proportion of seniors over 65 years of age has been tripling while the proportion of young people, including children from 0 to 5 years old, has dropped significantly in the past century. These changes in demographic structure can have considerable implications for various aspects of society, including healthcare, workforce composition, and social services.