Nowadays, I can see people are using their smartphones anywhere on the train or walking alone the street, In the past, we could only contact each other by letter, but with the development of technology, we can now easily connect with people through telephone and social networking services(SNS). There are also various functions and applications, which are very convenient. Now, I am going to argue about good and bad points of the SNS.
First, You can easily make friends with people from all over the world. Facebook is one of the most popular social networking. People can create their own profiles freely and post any photos, which they want to share with other people easily. They can also comment other posts and contact to someone who you want to be a friend using direct message. You can get a lot of information on the SNS easily. I also use Twitter to get some information about job hunting, and it is very useful.
Secondly, SNS is unreliable because you do not know each other well. You cannot know if people are using real photos and have never met before. Recently, suicide victims gathered to commit suicide together, and there was a case in which a woman was killed by a stranger Japan. Both cases were those who met on the SNS. I do not understand why they can meet easily but I think they could control each other since they do not know their facial expression or voice tone through the message.
To conclude, I agree with the development of SNS. However, it has not only good things but also has bad effects to your life. You can make friends and get a lot of information . On the other hand, you can get hurt by someone who abuses SNS, so we should be more careful when use it.