A mother puts the adult hat on her child at a coming-of-age ceremony in the No. 1 Middle School of Botou City, north China's Hebei Province, May 18, 2016. More than 1,400 students at the age of 18 attended the coming-of-age ceremony. (Xinhua)

Students attend a coming-of-age ceremony in the No. 1 Middle School of Botou City, north China's Hebei Province, May 18, 2016. More than 1,400 students at the age of 18 attended the coming-of-age ceremony. (Xinhua)

Students make an oath at a coming-of-age ceremony in the No. 1 Middle School of Botou City, north China's Hebei Province, May 18, 2016. More than 1,400 students at the age of 18 attended the coming-of-age ceremony. (Xinhua)

A student hugs her father at a coming-of-age ceremony in the No. 1 Middle School of Botou City, north China's Hebei Province, May 18, 2016. More than 1,400 students at the age of 18 attended the coming-of-age ceremony. (Xinhua)

Student throw adult hats into the sky at a coming-of-age ceremony in the No. 1 Middle School of Botou City, north China's Hebei Province, May 18, 2016. More than 1,400 students at the age of 18 attended the coming-of-age ceremony. (Xinhua)

Students hug their parents at a coming-of-age ceremony in the No. 1 Middle School of Botou City, north China's Hebei Province, May 18, 2016. More than 1,400 students at the age of 18 attended the coming-of-age ceremony. (Xinhua)