Comment: 24 PagesThis study presents a model that examines how families make decisions about having children, managing resources, and planning for their financial security in light of social and economic factors. It explores the balance between the number of children and the quality of life parents wish to provide, including education and future income prospects. By considering parents' expectations about their children's future earnings, the model gives new insights into how families allocate their resources. It also looks at how decisions about savings and pensions are connected to daily spending and family planning, showing the complex links between these factors. The findings offer valuable guidance for policies that address these interrelated challenges and better support families in managing their resources.