(WASHINGTON) — Mark Zuckerberg is set to testify Wednesday in a landmark Los Angeles trial alleging that major social media platforms were intentionally designed to be addictive for children and teens.
The case, which began last Monday in Los Angeles County Superior Court, centers on claims against Meta — the parent company of Facebook and Instagram — and YouTube, which is owned by Google. Plaintiffs argue the companies knowingly built features that encouraged compulsive use among young users, contributing to long-term mental health harm.
The lawsuit was brought by a now-20-year-old woman identified as “Kaley” and her mother, who allege she was exposed to addictive design features as a child. Her lawyers claim she got hooked on social media apps starting as young as age 6. She says features like auto-scrolling got her addicted to the platforms — ultimately leading to anxiety, depression and body image issues.
In opening statements, the plaintiffs’ attorney Mark Lanier told the jury the case was “as easy as ABC,” which he said stood for “addicting the brains of children.”
The case is the first of more than 1,500 similar lawsuits nationwide to go before a jury, potentially setting a precedent for how tech companies are held liable for product design.
Zuckerberg has appeared before Congress multiple times to address concerns over youth safety and online harms, but Wednesday marks the first time he will testify before a jury on these claims. Legal experts say a verdict in favor of the plaintiff could weaken the broad liability protections tech companies have long relied on under Section 230 of the 1996 Communications Decency Act, which shields platforms from responsibility for user-generated content.(cut)
Several parents of children who died by suicide or accidental harm linked to online trends are expected to attend the proceedings. Some previously watched Zuckerberg apologize during a 2024 Capitol Hill hearing, where he acknowledged families who said social media contributed to their children’s deaths.
The companies deny the allegations, arguing that mental health outcomes are shaped by a range of factors beyond social media use. They say they have implemented safeguards aimed at protecting young users, including parental controls and accounts designed specifically for teens.
In a statement to ABC News at the start of the trial, a Meta spokesperson said, “We strongly disagree with these allegations and are confident the evidence will show our longstanding commitment to supporting young people.”
Meta said that the company has made “meaningful changes” to its services, such as introducing accounts specifically for teenage users.
Zuckerberg’s appearance follows testimony last week from Instagram head Adam Mosseri, who disputed characterizing Instagram use as an “addiction,” while acknowledging what he described as “problematic use.”
Mosseri testified that there’s always a tradeoff between “safety and speech,” saying users don’t like it when they remove options from Instagram.
The Los Angeles trial is part of a broader wave of litigation targeting social media companies. Meta is also facing a separate child safety lawsuit in New Mexico, while lawsuits brought by school districts — modeled after tobacco litigation in the 1990s — are expected to head to trial later this year.
Social platforms Snapchat and TikTok were previously named in the lawsuit but reached settlements with the plaintiffs last month.
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