Unschooling is a range of educational philosophies and practices surrounding the primarily belief that education is a greater undertaking than schooling. Unschooling places little emphases on traditional school curriculum and encourages children to learn through their natural life experiences including play, game play, household responsibilities, personal interests and curiosity, work experience, travel, books, elective classes, family, mentors, and social interaction. Unschooling encourages exploration of activities initiated by the children themselves, believing that the more personal learning is more meaningful, well-understood and therefore useful to the child. Differing from conventional schooling, unschooling questions the usefulness of standard curricula, conventional grading methods, and other features of traditional schooling in maximizing the education of each unique child. The term "unschooling" was coined in the 1970s and used by educator John Holt, widely regarded as the "father" of unschooling. While often considered a subset of homeschooling, unschoolers may be as philosophically separate from other homeschoolers as they are from advocates of conventional schooling. While homeschooling has been subject to widespread public debate, little media attention has been given to unschooling in particular. Popular critics of unschooling tend to view it as an extreme educational philosophy, with concerns that unschooled children lack the social skills, structure, and motivation of their peers, especially in the job market, while proponents of unschooling say exactly the opposite is true: self-directed education in a natural environment makes a child more equipped to handle the "real world." The household is "the basic residential unit in hich economic production, consumption, inheritance, child rearing, and shelter are organized and carried out"; [the household] "may or may not be synonymous with family". The household is the basic unit of analysis in many social, microeconomic and government models. The term refers to all individuals who live in the same dwelling. In economics, a household is a person or a group of people living in the same residence. Most economic models do not address whether the members of a household are a family in the traditional sense. Government and policy discussions often treat the terms household and family as synonymous, especially in western societies where the nuclear family has become the most common family structure.[dubious – discuss] In reality, there is not always a one-to-one relationship between households and families.For statistical purposes in the United Kingdom, a household is defined as "one person or a group of people who have the accommodation as their only or main residence and for a group, either share at least one meal a day or share the living accommodation, that is, a living room or sitting room" National Statistics. The United States Census definition similarly turns on "separate living quarters", i.e. "those in which the occupants live and eat separately from any other persons in the building" A householder in the U.S. census is the "person (or one of the people) in whose name the housing unit is owned or rented (maintained);" if no person qualifies, any adult resident of a housing unit is a householder. The U.S. government formerly used the term head of the household and head of the family to describe householders; beginning in 1980, these terms were officially dropped from the census and replaced with householder.