This report from the SCIREARLY project aims to provide a clear, actionable roadmap to assess and elevate the quality of Early Childhood Education and Care (ECEC) across Europe, recognising its pivotal impact on children’s future academic and life success. High-quality ECEC is a transformative force, shaping long-term academic and professional outcomes. Poor-quality early education can lead to persistent issues like underachievement and school dropout, especially among vulnerable children. In contrast, high-quality ECEC builds a strong foundation for successful learning and development, particularly for those at risk of early school leaving (ESL), offering a critical point in children’s lives to break the cycle of educational and social disadvantage. It also supports children’s right to a well-rounded, fulfilling educational experience, and contributes to building equitable and sustainable societies.