What advantage did xunzi have when compared to confucius and mencius?

His original name being Xun Kuang was one of the three great Confucian philosophers of the classical period in China. He elaborated and systematized the work undertaken by Confucius and Mencius. Unlike the predecessors, who were private teachers, he had a political experience as a state-sponsored academic.

c. it required that townships set aside land for public schools.