China has always been a nine-year compulsory education, that is, six years in primary school and three years in middle school. Some places are grade five, grade four, or grades one to nine. It is the obligation of the state to let school-age children complete nine-year compulsory education, and it is also the right and obligation of students and parents. But recently, I heard that 12 compulsory education will be implemented, and three years of high school is compulsory education. I just don't know if this news is reliable.