No minor having a permit to work and no minor under 18 years of age, who is otherwise required by law to attend school, shall be out of school and unemployed for a period longer than 10 consecutive days while the public schools are in session, but shall enroll and attend school.

The provisions of this chapter shall not apply to any minor who has been graduated from a high school maintaining a four-year course above the eighth grade of elementary schools, or who has had an equal amount of education in a private school or by private tuition, or who has been awarded a certificate of proficiency pursuant to Section 48412 of the Education Code.