It is often argued that there are some children who are spending thier time on their smartphones everyday. In my opinion,the growth of smartphone usage time for children has more harmful effects than its benefits. First of all, children who spend their whole time on their smartphones are likely to lack of social bonding in real life. If they are stick to their phones for a long time, they are unlikely to meet and hang out with their friends at play grounds or in central parks. Also, they would feel more comfortable and pleasure when they are with their friends on the internet rather than friends in real life. If these bad situations are continued, they will be likely to lose bonding with their family and friends. For example, many kids who appeared on TV shows because of their social ability issues had common in being addicted to their phones and not being willing to meet their friends from their schools. That's why I believe that children's being stick to their schools has more dis...