The Commissioner for Children and Young People Western Australia has released this report reviewing the current evidence on girls’ wellbeing to understand the reasons for the wellbeing gap between male and female young people. It was found that gender stereotypes, driven in part by increasing social media usage, affect self-esteem, low engagement in physical activity, reduced feelings of safety and independence, and decreased sense of belonging for girls. The report calls for urgent action to improve girls’ wellbeing outcomes.