There's a growing crowd of people who are aware of the overpopulation issue, and who are saying that they will not have children of their own.

However most of the people who are aware of the issue, still will have children. Why is this? Many believe they need to "pass on their genes". But how important are genes compared to socialization and culture? Many also believe that they need to children to have a safety net when they grow old. Understandably, the majority of elderly in the world need or want their children to support them.

What can we do to address these beliefs about having children? By the way, I am not sure whether I want children.