The following is a student's answer to the question: "What are the good points and bad points of cell phones?"
An advantage of cell phones is that you can enjoy online shopping. It is easy to do online shopping. If you are busy, you can buy something online. Moreover, you can comunicate with your family at the time of a disaster. So, you can be relieved. A disadvantage is that you may get involved in a crime. Today, many people use SNS. It's easy to connect with unknown people. Also, using cell phones is bad for our health. Their blue light is not good for our eyes.