High-quality early childhood education (ECE) has an enormous positive impact on lifelong health, serving as a protective factor against adult disease and disability. Children who receive high-quality ECE stay in school longer and earn more income as adults, helping to close the income inequality gap. Yet parents sometimes struggle to access or pay for available programs, and only about 16% of children who were eligible for federal childcare subsidies in 2015 received them. Given the high...