Mason’s daughter, Tilly, took her own life in 2022 at the age of 15 after being bullied on apps like Snapchat, Instagram and Facebook. Classmates sent messages from parties Tilly hadn’t been invited to, circulated a fake image purporting to show her nude, and urged her to end her life, according to her mother. Mason argues that social media platforms are culpable for their role in Tilly’s death. In September, she addressed an event at the United Nations to urge other countries to follow Australia’s precedent, drawing a standing ovation from the audience, which included European Commission President Ursula von der Leyen.“This is unparalleled harm that our children have been exposed to and I’m just not putting up with it anymore,” Mason said in an interview.