Meta Faces Unprecedented Legal Reckoning Over Youth Mental Health As Massive Multistate Trial Begins

Meta Platforms is facing a critical juncture in its battle over youth online safety. Just weeks after suffering a massive legal defeat in New Mexico, the parent company of Facebook and Instagram is now defending itself in a California federal court against a bipartisan coalition of 29 states. The states say Meta deliberately designed its platforms to addict children and harvested their data in violation of federal law.

The California Showdown

A sweeping multistate trial opens Tuesday in Oakland, California, overseen by U.S. District Judge Yvonne Gonzalez Rogers. Attorneys for Colorado, California, New Jersey and Kentucky - leading a bipartisan group of 29 states - will deliver opening statements. Those four states' claims about addictive design and deceptive marketing are what this trial tests, while all 29 states are involved over data-harvesting claims. 

Interestingly - the eight-person jury hearing the case won't actually decide it. Rogers empaneled it in a purely advisory capacity, which is rare. The jurors will answer specific questions she selects, and she is free to disregard their findings entirely when she issues her ruling after the trial concludes in October, Reuters reports.

The states argue that features like infinite scroll were purposely engineered to keep young users hooked, that Meta misled the public about the safety of its platforms for adolescents, and that the company improperly collected and monetized children's personal data in violation of federal law.

The financial exposure is the largest of any case Meta has faced. The company has warned that maximum statutory penalties could theoretically reach $1.4 trillion, while the attorneys general have indicated they may seek around $200 billion.

A Reuters/Ipsos poll released last week found that 85 percent of Americans believe social media can be addictive for children.

Beyond money, the coalition wants nationwide structural changes: age restrictions, deletion of algorithms and AI models built with children's data, elimination of infinite scroll and notifications, strict time limits for young users, and an algorithm retuned to prioritize well-being over engagement. Meta CEO Mark Zuckerberg and Instagram head Adam Mosseri are both expected to testify, alongside former employees and outside experts.

What Happened In New Mexico

The multistate trial arrives on the heels of a devastating legal blow in New Mexico. On Aug. 6, State Judge Bryan Biedscheid ruled that Meta had created a public nuisance and ordered the company to pay $567 million into a youth mental health fund, allocating $420 million to treatment, $90 million to screening and assessment, $33 million to prevention and awareness, and $15 million to referrals and care coordination over five years. The award followed a $375 million penalty a New Mexico jury imposed in March for violations of the state's Unfair Practices Act.

The award fell well short of New Mexico's request. The state had sought $1 billion toward a $3.7 billion plan to expand children's mental health services.

"The Court finds that the weight of the evidence presented demonstrates that Meta's platforms are a cause of and substantial contributing factor to the youth mental health crisis in New Mexico."

Biedscheid compared the platforms to a polluting factory, writing that the harms "do not stay contained" but migrate "to the real world" and burden families, schools, hospitals and law enforcement.

The order, a win for New Mexico Attorney General Raul Torrez, also imposes five years of operational changes: monthly limits on teen use of Facebook and Instagram, restrictions on notifications, tighter controls on adult contact with minors, safeguards for AI chatbots, and enhanced review of child sexual abuse reports. Meta must file written progress reports twice a year. The template is now sitting in front of the 29-state coalition.

Meta's Defense

Meta plans to appeal the New Mexico ruling and maintains that the attorneys general in the California trial are chasing an "outlandish payout" without proof of actual harm. "We remain confident in our record of protecting teens online and will continue to defend ourselves against claims that misrepresent the facts," the company said after the New Mexico decision.

The company argues it has invested heavily in creating a safe environment for teens, employing child safety experts and deploying technology to root out predators and harmful content. Company spokespeople have characterized the state lawsuits as an attempt to penalize Meta for industry-wide problems, such as the complexities of age verification.

The litigation traces back to 2021, when whistleblower Frances Haugen testified before the U.S. Senate and provided internal documents indicating Meta knew its platforms could harm young users but prioritized engagement over safety.

Meta is not alone. Alongside Snap, TikTok parent ByteDance and YouTube parent Alphabet, it faces more than 3,000 federal lawsuits consolidated before Rogers and another 3,300 pending in Los Angeles state court. Eight states, including Tennessee and Arkansas, opted out of the federal case and filed in their own courts. Tennessee's trial is already underway.

Meta has told investors that legal and regulatory blowback over youth safety "could significantly impact our business and financial results."