Generally speaking, in order to make parents feel attachment, trust, love and happiness, it is a psychological satisfaction. In a small way, raising children to prevent old age is one aspect of the economy, and so is self-esteem.

Economic security

In any case, having children is the backing of becoming a vulnerable group when you are old. For example, if you can't move, can you enjoy peace in your last days?

Old age life

Old people without children are also easily bullied by people around them, including relatives. People who have a bad relationship with their children may feel cold when they are young. When they get old, their earning power and physical strength are not as good as before. Without children to rely on, they will be looked down upon by people around them.

domestic happiness

When children grow up, they will go home to visit their parents on holidays. Compared with indifference without children, they will definitely have a sense of happiness.

hygiene

When you are really sick, it is your children who can take care of themselves. Even with money, those nannies are unreliable. Only children really care about themselves.