The oldest person in a vocational school is 20 years old. According to relevant data, secondary vocational schools require the age to be 14-20 years old, and 20 years old is the highest age for registration. Vocational school is a school where students acquire the knowledge and technical skills needed for a certain occupation, which is referred to as vocational school for short. /kloc-came into being in Europe at the end of 0/8. /kloc-After the middle of the 0/9th century, with the development of capitalist production, some countries established the stage of secondary education.