Drug scandals expose deep-rooted problems in preschool education, reports Wang Hongyi in Shanghai

During the past year, Xu Xinchang has been busy visiting kindergartens, doing research and gathering parental feedback.

"It's so difficult for parents to find the right school nowadays," said the 30-year-old from the northern city of Tianjin. "There's still a year to go before my daughter is old enough to enter kindergarten, but I must fully prepare for it by using a comprehensive selection procedure."