Not necessarily.
Personal opinion on the matter of raising children to prevent old age is. This is not particularly reliable, raising a generation, not that put all your unfulfilled wishes on him to realize, or that is to give you old age, most of our fathers and mothers are such ideas.
How much family responsibility a child carries. A family that raises children and takes care of the elderly. With the cost of living these days, only a very few people are able to pick up their parents and children. Many parents are left behind in their hometowns and only go back to visit on New Year's holidays.
If they meet the ungrateful ones, they don't even look at them, so it's better for people to make some preparations for their old age when they are young, and they can't put all their hopes on their children.