The use of social media has become integrated into the daily lives of most Gen Zers with access to mobile technology, who use it primarily to keep in contact with friends and family. As a result, mobile technology has caused online relationship development to become a new generational norm. Gen Z uses social media and other sites to strengthen bonds with friends and to develop new ones. They interact with people who they otherwise would not have met in the real world, becoming a tool for identity creation. The negative side to mobile devices for Generation Z, according to Twenge, is they are less "face to face", and thus feel more lonely and left out.