Nowadays, the Internet has been popular all over the world and permeated people's daily lives. The online platforms help people get extensive information and expand their ideas. In the Internet age, people use Internet mainly for several purposes, such as searching, entertainment, accessing to information and social interaction. This is the case not only with adults, but children are also getting into the network. According to the Report on the Use of Children's Network in China, more than 50% children have accessed to the Internet in preschool. Therefore, many parents begin to worry about the...
