1, teach children to remember basic information, teach children to remember their detailed address, parents' names, telephone numbers and work units, and be able to recite them. This information is very useful if you are trafficked to verify your identity and find your parents.

2. Give your child some pocket money, not necessarily a mobile phone, but it is best to give your child some pocket money, which can be used to call for help in an emergency, or to help others call the police and contact their parents. What is the number of the 911 call? Teach them to keep it in mind.