Population ageing is a complex problem in a number of economies today. It is an outcome of  economic  growth which is treated as a means to reach higher standard of living. However, it creates negative effects on growth (the solution). Growth increases the proportion of the old-age population which  contributes to the increase in public spending on health which results in the expansion of the public sector. In the analysis of the  population ageing, there are some important aspects that one needs to be familiar with. This paper examines and highlights some of such striking features of the  population ageing by reviewing literature and examining relationships between variables in the light of secondary data. To avoid the expansion of the public sector, the paper proposes imposing a payment on children so that their old-age parents could  lead better lives. Also, the paper recognizes the  population ageing as a cost of growth and  emphasizes the analytical tools to be used for countries where direct approach to welfare is adopted. Finally the study highlights a greater volatility in economic growth than in   life expectancy as another issue and lower levels of labour force in developing Asian countries than in developed  economies in the region which may create rigorous problems for these developing nations once their income    increases in the future.