Products are selected by our editors, we may earn commission from links on this page.
A courtroom in Los Angeles has become the latest battleground over the impact of social media on young users, and the arguments now unfolding could influence how technology companies design their platforms for years to come. At the center of the case are Meta, the parent company of Instagram, and Google’s YouTube, as jurors begin hearing claims that these platforms were built to hook children through deliberate design choices.
As opening statements began in Los Angeles County Superior Court, attorneys for the plaintiffs framed the case around what they described as engineered addiction, pointing to features that encourage constant validation and repeated use. That framing sets up a direct dispute over intent, because the lawsuit argues that internal documents reveal an awareness of how these features affect minors and an effort to keep them engaged for profit.
Meanwhile, Meta and YouTube reject those claims and point to safeguards they say protect young users, which means jurors will now weigh competing narratives about responsibility, design, and the mental health of children in a trial expected to last up to eight weeks.
Bellwether Case Focused on Teen Plaintiff
At the center of the Los Angeles trial stands a 19-year-old identified only as KGM, and her case now serves as a test for thousands of similar lawsuits moving through courts across the country. She claims that heavy social media use beginning at a young age led to addiction, worsening depression, and suicidal thoughts, which in turn frames the broader legal argument around deliberate platform design.
Her lawsuit argues that companies embedded features meant to keep minors engaged, borrowing techniques associated with slot machines and other habit-forming systems, and that strategy, according to the complaint, aimed to increase advertising revenue. As a result, attorneys contend that those design choices move beyond user content and toward corporate responsibility.
Two other plaintiffs join KGM in what courts call bellwether trials, and through that process, jurors will weigh evidence that could influence how future cases proceed.
Global and State Lawsuits Target Social Media Platforms
Legal action now stretches well beyond Los Angeles, and that wider push includes state attorneys general, school districts, and federal courts that have filed parallel claims against major platforms. More than 40 states have sued Meta, alleging that Instagram and Facebook were designed in ways that encourage prolonged use among minors and contribute to worsening mental health outcomes, and those cases now move through federal and state systems at the same time.
At the federal level, a bellwether trial scheduled in Oakland will represent school districts seeking damages tied to student well-being, and that proceeding connects local education concerns to national scrutiny of platform design. In New Mexico, another case alleges failure to protect minors from sexual exploitation following an undercover investigation, which adds a separate layer of legal exposure.
Outside the United States, governments have begun imposing age-based limits, with France approving a ban for users under 15 and Australia revoking access to about 4.7 million child accounts under its new law, as other countries signal they may consider similar measures.
Regulatory Pressure Expands Beyond the Courtroom
As the trial moves forward, attention now extends beyond a single jury and toward how lawmakers and regulators respond to the claims raised in court. Attorneys have argued that deliberate design choices aimed at increasing youth use could fall outside traditional liability protections, and that legal theory may influence how future cases are filed across the country.
Executives, including Meta CEO Mark Zuckerberg, are expected to testify in the weeks ahead, and their testimony may clarify how companies evaluated the impact of features tied to validation and repeated use. Jurors, meanwhile, have been instructed to continue using social media without altering their habits, which keeps the platforms present in daily life even as liability questions unfold.
At the same time, lawmakers in the United States continue debating age verification standards and design limits, and that policy discussion connects directly to parallel moves in France, Australia, and the United Kingdom as governments consider stricter controls on youth access.