A common misconception about the ageing population of the countries around the world happens to be that they belong to countries who either have a very developed healthcare sector or they are countries with low fertility rates. Factually speaking, the matter is quite contrary to that. The countries with the largest populations also happen to have the largest proportions of old people, where China tops the list with India following right behind it.
The aforementioned misconception arises due to a confusion between two different concepts. One of them discusses the overall amount of old age people living in a country and the other talks about their percentage from the entire population. Though the concepts might seem somewhat interlinked, both of them end up showing very different results.
The countries that have large populations are obviously set to have larger old age groups too, so there seems to be no need for a discussion over there. Though they do put in some effort to curb the dependence of the old aged people on the younger generations, they are still bound to have a larger amount of older people. On the other hand, there still are countries that do not have a high fertility rate yet they end up with higher median ages of the population. The reason why this happens is explained by many sociologists of our era. The primary factor contributing to it is accessible health care services, which saves a lot of people who otherwise might have passed away. Therefore looking at the list of countries that top this list, you would notice that the overwhelming majority of them belong to developed nations.
Additionally, there happens to be an issue in many developed countries where having children is becoming increasingly difficult, therefore many of their people choose to not do so. This results in no newer generation coming on its way, and the older one staying due to accessible medical services.
Countries that have faced such issues, including Japan, have invested a lot of resources into promoting the culture of getting married and having children. The government gives out a lot of benefits to eligible couples to have an increase in the overall fertility rate. But considering the amount of cultural change that has already occurred in such societies, there is pretty much no guarantee as to whether the government will be able to achieve its goals or not.
Some European countries on the other hand have been opening up their doors to immigration, where they end up getting a young workforce entering their society at very little cost to the country. And considering the recent Exodus-like influx of people coming in especially from Asia and Africa, they genuinely have no major problem of finding the right people to do their work.
In the end, no matter what national policy a government was to adopt, there happen to be so many interconnections between social factors that a government cannot single out the impact of ageing population policies over the others. Therefore, it remains to exist as a widely discussed topic amongst the concerned literati.