A region is not mentioned in this question, or it appears to be from the world in general;
. While the old age rate is increasing in developed countries, the old age rate is decreasing in developing countries.
. This also affects the birth rate. In small countries, the old age rate is decreasing due to the health problems caused by the high birth rate and the lack of capacity.
. On the other hand, in developed and large countries, the average age and old age ratio have increased with the developments in the quality of health, since there is a level of welfare and comfort.
. The old age rate is proportional to the poverty rate and the development of the countries.
. If we give an example, this rate is low in African countries, while it is high in America and Europe.