The reason is that, considering that young people living alone grew up in the outbreak of Internet, network equipment has become a living habit. At the same time, because young people living alone are single and have no object to talk to at home, they often brush their mobile phones at home and immerse themselves in their own small world. In order to keep in touch with the outside world, they can't live without WeChat and friends. The refresh frequency is very high, and frequent exchanges and interactions with friends through the network will make them crazy. Apart from mobile phones, young people living alone often choose to feed a pet to kill time, give themselves spiritual and emotional comfort, and make themselves look less lonely. However, due to their busy work, most of them choose to feed cats.