Yes, it is very necessary, because it can be unsuccessful, but it must not be unsafe. You only have one life. Only by knowing how to protect yourself can you live a better life in this imperfect society where there may be cheating, injury and crime at any time.

Tell you self-defense education that can protect yourself. I hope you remember: 1. For women, don't walk at night, don't be a backpacker, and don't travel alone if you can travel together. 2. Your body belongs to you. If criminals value life first, property second, 3. Then keep calm, don't panic and observe the surrounding environment. At this time, generally pay attention to what he is holding. If the opponent is not holding a pistol and does not enter a Jedi that can't rotate, the best way is to make a fake action and then suddenly run to an unexpected place. Shouting while running. Or you can run into the restaurant quickly and break the glass and tableware to attract more people to help you through the destruction.

Four: tell your mother a little secret, because what is truly credible is the person whose mother will not hurt you the least. You have the right not to listen to strangers, and you have the right to say no to strangers. Five: don't drink strangers' drinks, don't eat strangers' food, and don't go with people other than parents and family. It is right to ignore strangers. If you can't help strangers, don't help or talk to them. Six: In order to protect yourself, you have the right not to tell the truth to the bad guys, learn to cheat the bad guys, have the right to break all rules and regulations, and be the first to run in case of danger. You have the right to run away decisively, and run as fast as possible.

There are also "four elements" of self-defense: rape cases are the most in summer. Winter is the peak of individual bad guys stealing, and winter is the season with the most cases of property infringement. Second, space. Another is the atmosphere. During the summer vacation, girls go to boys' homes to do their homework. Men and women should not be in the same room for more than 30 minutes. Children in high school saved a lot of stories that shouldn't have happened in Seeds of Love. The last one is skill. We should master a skill when we encounter a crime: we should learn to leave personal traces.