Child care has developed primarily as a service for low-income parents who need a safe place for their children in order to work. Child care programs generally offer full-day, full-year services that coincide with traditional work hours. The terms child care and day care are used interchangeably, although early childhood professionals often prefer "child care" because it is more child focused, while day care speaks more to the needs of the parents. Early childhood is a broad term used more and more often to encompass all child care, development, and early education programs for children 0 to 5 years of age. While some child care programs offer access to more comprehensive health and social services, most lack the resources to do so. Regulations and standards for child care services and facilities are established by states and localities, and can vary widely.