This paper examines the impact of universal, highly-subsidized childcare in Quebec, introduced in the late 1990s, on childcare utilization, labor supply, and child and parent outcomes. The authors use the National Longitudinal Survey of Children and Youth (NLSCY) to analyze the effects of Quebec's "$5 per day childcare" program on married and cohabitating women and their children. The results show a significant increase in childcare utilization, particularly among informal arrangements, leading to a substantial rise in married women's labor force participation. However, the policy also led to negative outcomes for children, including poorer behavioral and health indices, and more hostile and inconsistent parenting. The authors conclude that while the policy increased labor supply, it had detrimental effects on child well-being and family dynamics.This paper examines the impact of universal, highly-subsidized childcare in Quebec, introduced in the late 1990s, on childcare utilization, labor supply, and child and parent outcomes. The authors use the National Longitudinal Survey of Children and Youth (NLSCY) to analyze the effects of Quebec's "$5 per day childcare" program on married and cohabitating women and their children. The results show a significant increase in childcare utilization, particularly among informal arrangements, leading to a substantial rise in married women's labor force participation. However, the policy also led to negative outcomes for children, including poorer behavioral and health indices, and more hostile and inconsistent parenting. The authors conclude that while the policy increased labor supply, it had detrimental effects on child well-being and family dynamics.