California compulsory education law requires everyone between the ages of six and eighteen years of age to attend school, except students who have graduated from high school or passed the California High School Proficiency Exam and obtained parental permission.

For the most part, usually being up to 20 or 21-years-old is the max oldest age in high school, until they put you out to Adult Education High School Center—however, there is one woman who attended high school above that age.

(Education Code 49050) Searches of individual students shall be conducted in the presence of at least two district employees. The principal or designee shall notify the parent/guardian of a student subjected to an individualized search as soon as possible after the search.

Since school is mandatory for six-year-old students, parents and guardians must enroll their children in school once they reach the age of six (EC Section 48200). It is a local decision, with parental input, whether the six-year-old student will be enrolled in kindergarten or first grade.