How is the study of demography related to sustainable development?

Demography will provide the government with the information regarding different characteristics of the population.

For example, Through demography we can find out:

-The average income of the people in our society.

- The percentage of human population who carried out a certain disease.

- Separating the population into groups based on their skill sets.

- The majority attitude toward a certain political decisions.

All of this data will provide enough information for the government to make a decisions needed by the nation to move forward, whether it's a social or economic decision. If we constantly rely on accurate demographic data, we will be able to accurately create a proper decisions that maintain a sustainable development of our society.

My mom is, not me though. Sorry!