At the very long period of time before social media was created , communiating with friends was an important part of everyone's daily life. People needed to talk about their work or subjects with others, so they needed to meet others in person. But nowadays, everything can be done online, we communicate with friends with social media. The chance of meeting people in person is low. Another strange phenomenon on social media is that when people get older in a certain age, usually in their later thrities, they became farouche, they seldom post moments on soical meida which is very different from their twenties. People in that age don't like to share their thoughts or mood with other neither online nor in person. But they are really keen on giving comments to the video which can sticke a chord. In that case, some people begin to be afraid of social contact. They'd rather stay alone with their cute phone than hang out with friends. A phone can supplies all the needs they need. The value of having a friend is not that important like what it is in the past time.