The Philippine school system is structurally similar to the American one. Children in the Philippines start nursery school or kindergarten at around four years of age. Elementary school lasts six years and starts at age 5 or 6. Secondary school (high school) runs for a further four years. The Philippine school year starts in June and ends in March, with a two-month summer holiday in April and May. Very few foreign children attend state (public) schools because the language of instruction is Tagalog. Numerous private kindergartens and elementary and secondary schools, most of which are Catholic, and several private universities, offer an alternative to the state education system. Private kindergartens and playgroups for young children from the age of 2 are available just about everywhere, including in residential areas ('residential villages').