„Forty-eight percent more girls said they often felt left out in 2015 than in 2010, compared with 27 percent more boys. Girls use social media more often, giving them additional opportunities to feel excluded and lonely when they see their friends or classmates getting together without them.“
Univ.-Prof. Dr. Jean M. Twenge, „Have Smartphones Destroyed a Generation?“. In: The Atlantic online vom September 2017