The national survey of America's families -- Sample : families with young children -- Analysis variables -- Overview : use of child care in California -- Children under 6 years old : share in child care -- Choice of arrangements -- Choice of arrangement by child and family characteristics -- Work schedules and care arrangements -- Summary -- Paying for child care -- Monthly expenditures on child care -- Monthly expenditures by family and child characteristics -- Child care assistance -- Summary -- Preschool enrollment -- Care settings for preschool age children -- Characteristics linked to preschool attendance -- Targeting efforts to groups less likely to use preschool -- Children in parental care only -- Children in other care settings -- Promoting use of preschool -- Costs of universal preschool -- Assumptions on take-up of and costs for preschool -- Families eligible for universal preschool -- Enrollment of children not currently in preschool -- Crowd-out of existing preschool -- Cost per child in universal preschool