A California trial is underway to determine whether Meta and Google deliberately designed their social media platforms to be addictive for children, potentially causing mental health harms. The trial could set a precedent for numerous similar lawsuits and challenge the companies' business models. The plaintiffs argue that the companies' pursuit of profit led them to create addictive products, while the defendants claim that their platforms are not inherently addictive and that other factors contribute to mental health issues. The outcome of the trial could have significant implications for the tech industry and its responsibility towards young users.