How will you spend your old years?
In China, the one-children policy has raised increase some social issues/questions; just imagine/consider/think, one people person may have to support afford at least four people: father, mother, and father-in law, mother-in law, sometimes his children. It's was feasible in earlier old times when there are were many children in one family, but not now. The Government have has to/ should consider more other ways to deal with/settle this problem. Most people have social pension insurance, and more and more people buy commercial sinsurance as the to supplement of social security. Because you can't obtain receive/get equal the equivalent/the same amount of money as your salary from the social pension.
What will you do when you are old in your country , depend on your child, your government or yourself?
I rely on savings, my employment pension, and my state pension when I reach official retirement age [currently 68 years]. The state pension is just a minimum for living, so to do other things you need an occupational [employment] pension or savings.