In one study, almost 9 in 10 young people questioning their gender appear seemed to be subject to social influence.
86.7% of the young people in Lisa Littman’s 2018 study  belonged to a friend group where one or more friends came out as trans at the same time, and/or had an increase in their use of social media.
Social contagion – the involuntary “catching” of behaviors and attitudes across connected individuals  – is a well-accepted phenomenon in psychological literature . It is well-documented that adolescents — and females in particular — are prone to social contagion effects, from cutting  to eating disorders . Social network analyses suggest that peer contagion underlies the influence of friendship on obesity, unhealthy body images, and expectations .
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 Hermansson-Webb, E. B. (2014). ‘With Friends Like These…’: The Social Contagion of Non-Suicidal Self-Injury Amongst Adolescent Females. Thesis, Doctor of Philosophy: University of Otago. [Link]
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