A groundbreaking study has found that trans girls almost don’t differ from cis girls of their age and trans boys are also almost undefined among cis boys of their age if they are socially accepted and not forced to live under the mask of gender they don’t self-identify with. The findings, published by Washington University researchers Anne Fast and Kristina Olson, came from a series of tests on 36 trans children aged 3 to 5, who have socially transitioned. The trans children kept to gender stereotypes just as closely as the 36 cis kids in the study. According to the research “young transgender children were just as likely as [cisgender] children to show preferences for peers, toys, and clothing culturally associated with their expressed gender.” In fact, the trans children “never significantly differed from their gender-matched peers” on almost any question, including when they were asked to point to children they wanted to befriend. The only significant difference was that trans kids “were less likely to see other people’s gender as stable over time” – a result probably born from their own experiences, the researchers said.