As the world population grows, the problem of an ageing population has become more serious globally. This is notjust a future concern—it is happening right now. About nine percent of people are more than sixty-five years old in the world. Let's take a closer look at specific examples: Ageing population percentage in the US is now 13% and is expected to be 2396 by 2030. The situation is more severe in Japan and Italy. And Germany follows, whose percentage of people over sixty-five years old is expected to be twenty-five percent by 2030. These figures reveal a clear trend: industrialized nations are experiencing the most rapid growth in older populations. The ageing problem is related to industrialization. Industrialized societies tend to have better healthcare, nutrition, and living standards, which allow people to live longer. At the same time, as countries develop economically, birth rates often decline. This combination of people living longer and fewer babies being born naturally leads to an older average age for the population.