There is no fixed rules on when a child needs to start preschool education but majority would start when the child turns 5 years old. Schooling can begin earlier, from 3-6, in kindergarten. Preschool education usually lasts for 2 years, before they proceed to primary school at age 7. There is no formal preschool curriculum except a formal mandatory training and certification for principals and teachers before they may operate a preschool. The training covers lessons on child psychology, teaching methodologies, and other related curricula on childcare and development.
Preschool education is mainly provided by private for-profit preschools, though some are run by the government or religious groups. Some primary schools have attached preschool sections. Attendance in a preschool programme is not universal; while people living in urban areas are generally able to send their children to private kindergartens, few do in rural areas. Registered preschools are subjected to zoning regulations and must comply to other regulations such as health screening and fire hazard assessment. Many preschools are located in high density residential areas, where normal residential units compliant to regulations are converted into the schools.