It is true that ex-prisoners can reintegrate into society as normal, productive members. I completely support the idea that allowing such individuals to speak to teenagers about their experiences is one of the most effective ways to discourage them from engaging in criminal behavior.
In my opinion, teenagers are more likely to accept advice from someone who has lived through similar experiences. Reformed offenders can share their stories of how they became involved in crime, the dangers of a criminal lifestyle, and what life in prison is actually like. They can also dispel any misconceptions that teenagers may have about criminals leading glamorous lives. While adolescents may often disregard guidance from older individuals, I believe that most of them would be very eager to hear stories from an ex-offender. The vivid and sometimes shocking nature of these accounts is likely to have a significant impact.
The alternatives to using reformed criminals for educating teenagers about crime would be far less effective. One option might be for police officers to visit schools and talk to young people. While this could be informative regarding the consequences of lawbreaking, teenagers are often hesitant to take advice from authority figures. Another option could involve school teachers discussing crime with their students, but I doubt that students would view teachers as credible sources on this topic. Finally, educational films might provide information, but they lack the opportunity for young people to engage and ask questions.
In conclusion, I wholeheartedly support the view that individuals who have successfully turned their lives around after serving time in prison could play a crucial role in deterring teenagers from committing crimes.