The origins of inequality may be traced back to one’s parents and place of birth, which determine differences in the opportunities and resources individuals have access to. Early life social and economic injustices and disadvantages restrict prospects for full potential realization and the capacity to exercise one’s rights. Discrimination based on age, gender, race or ethnicity, handicap status, sexual orientation, immigration status, place of residence, or other variables causes disadvantage to certain people in numerous, often undetectable ways throughout their lives. The next generations inherit these patterns of inequity. Thus, the key to ending intergenerational poverty and inequality is early interventions and investing in all children, especially the most disadvantaged and marginalized ones. Sustainable planning promotes social equity by addressing disparities, reducing poverty, and fostering social cohesion. It entails laws and initiatives that guarantee fair distribution of development advantages, empower underserved populations, and advance equitable access to resources and services. Equitable resource distribution, investments in education and skill development, the implementation of social protection measures, the fight against discrimination, the support of marginalized groups, and international cooperation for fair trade and financial systems are all necessary to reduce inequality within and between countries.