Under "one child policy", only one child is allow for each family in China (assum, may not ture). The reason is because it doesn't want the population growing too fast, it looks OK and works.
But I am worry>>
there will be noone call SISTER, BROTHER, UNCLE, AUNT.... as the relationship we are having as present.
Also>>
if the only child die, it means the family tree can't continue and the family will finish.