In terms of teenagers, they have mostly been influenced by their peers, either positively or negatively. As for positive impact, adolescents not only have learnt from knowledge spillovers, but also have had disciplinary

In terms of teenagers, they have mostly been influenced by their peers, either positively or negatively. As for positive impact, adolescents not only have learnt from knowledge spillovers, but also have had disciplinary standards from their peers. Moreover, they also have had academic performance by creating a competitive environment. On the other hand, they may suffer from bullying behaviors resulting in both physical and mental harm. In addition, young adults have been more likely to adopt dangerous habits such as engaging in sexual activities, consuming alcohol and drug. Therefore, there have been a lot of misbehaviors, which leads to schools expelling them for those behaviors.