Tell your child that whoever bullies you will fight back bravely.
Parents come out.
Parents can stand up for their children when necessary. This is not to let parents beat other children, but as a deterrent to your children.
♂? physical exercise
Usually urge children to do physical exercise, and you can learn basic fighting if you have the conditions.
See the world more.
Let your children know more about the world. The so-called well-informed, experienced more things, naturally more mature and calm when encountering things.
General knowledge of security
Popularize basic safety knowledge to children and tell them that they can ask teachers and police for help when their parents are not around.