A fifth of Chinese children — that’s 60 million kids — are living in villages, while their parents are in the city. According to the Washington Post:
the city workers are so squeezed by high costs and long hours that many send their children to live with elderly relatives in the countryside.
The BBC claims these children are disproportionately victims of sexual abuse:
School children in rural areas are particularly vulnerable if their parents happen to be migrant workers who spend a long time working away from home. They often don’t get to visit regularly and the children are left to be looked after by relatives, such as grandparents.