When I was teaching at school, there was virtually no instruction given to students on the dangers and consequences of crime and drug use. Schools should introduce courses that give clear evidence of physical and psychological harm to users of such things, and the devastation it can cause to families and others.
But the young also need to hear the advantages of a wholesome life. The main thing young people lack these days is a sense of purpose. As President Kennedy once said, “Ask not what your country can do for you. Ask what you can do for your country.” Students should be shown what suffering and need there is in world and what they can do to help. Give them a purpose to help suffering people and serve their community. The common humanity that dwells in everyone would prompt him or her to respond and keep away from such vices.