Policy decision-makers today face vital choices for the future of economic growth and prosperity in their nations. The most successful countries over the next several decades will recognize now that the future of not only inclusive social development but also equitable economic growth depends more than ever on their investments in these family-friendly policies. This note makes two main points. First, child benefits integrated within a life cycle social protection system deliver for families, for business and for the economy as a whole. Child benefits help transform the character of economic growth into an inclusive and sustainable dynamic that delivers results for children and their families—and prosperity for their communities and their nations. Child benefits within a comprehensive social protection system support the achievement of 14 of the Sustainable Development Goals (SDGs). Second, child benefits provide the linchpin for a comprehensive social protection system that builds bridges from single-sector policy silos and embraces comprehensive and integrated approaches to inclusive development and economic growth, starting with investments in early childhood that integrate health, education, social care, family benefits, child protection, water and sanitation and other sectors. This strengthens a developmental dynamic that improves the well-being of families, ensures that the private sector prospers, and reinforces a strong national economy.