This paper investigates the relationship between attendance at pre-school school and children's outcomes into early adulthood. In particular, we are interested in: child cognitive development at ages 11, 14 and 16; intentions towards tertiary education; economic activity in early adulthood; a group of non-cognitive outcomes such as risky health behaviour; and personality traits. Using matching methods to control for a very rich set of child and family characteristics, we find evidence that pre-school childcare moderately improves results in cognitive tests at age 11 and 14, and 16. Positive effects are especially noticeable for girls and children from disadvantaged socio-economic backgrounds. Results for non-cognitive outcomes are weaker: we do not find any significant evidence of improvement in psychological well-being, petty crime involvement, or on almost all health behaviours. While the cognitive effects may well serve to reduce lifecycle inequalities there is no support here for other important social benefits.