Meta and YouTube are condemned for damaging the mental health of a young woman with “addictive” design

The decision was made in the Los Angeles Superior Court, after a trial that began at the end of January and that put under the magnifying glass Instagram y YouTube due to alleged design mechanisms designed to encourage compulsive use among minors. The jury concluded that both companies were negligent in the design and operation of their products, and that negligence was a substantial factor in the harm suffered by the plaintiff.

The young woman, identified in the file as KGM and presented at trial as Kaley, maintained that He started using YouTube at age 6 and Instagram at age 9.and that this early exposure led to almost constant use that affected their self-esteem, deteriorated their social connections, and contributed to mental health problems. During the process, he declared that left hobbieshe had difficulty making friends and constantly compared himself to other users.

The jury established a first compensatory award of 3 million dollarsof which Meta must face the 70% (US$ 2.1 million) and YouTube the remaining 30% (US$ 900,000). But the most sensitive data for the industry is another: the jurors also concluded that there was “malice, abusive conduct or fraud”, a definition that enables a second stage to define punitive damages, that is, an additional financial punishment that could significantly increase the sentence. Some American media reported that this instance could already add another 3 million dollars.

“The ruling manages to circumvent Section 230 of the Communications Decency Act American, which for a long time protected platforms from any responsibility for the damage caused to their users. The key is that the plaintiff lawyers did not question the content published by third parties, but rather the design of the product: infinite scroll, autoplay, compulsive notifications“he explains to Clarion Luis García Balcarce, lawyer specialized in digital rights.

“It is not a question of content moderation, but rather a case of a defective product. In terms of Argentine law, it is similar to objective liability for the defect or risk of a product or service put into circulation: the platform would respond as the manufacturer of the product,” he adds.

Kaley’s file was chosen as a model case or bellwether, a key figure in the American judicial system when there are thousands of similar lawsuits. In practice, works as a pilot test: its result does not automatically define the other files, but it does indicate how future jurors could react to the same arguments and evidence.

Therefore, the scope of the ruling far exceeds the initial $3 million. The case is part of a series of coordinated lawsuits in California against companies such as Meta, Google, TikTok and Snap for alleged damage to the mental health of children and adolescents. TikTok and Snap had, in fact, previously agreed to a settlement with the plaintiff before the trial began, while Meta and Google They decided to go all out and litigate until the verdict.

“The concept of addiction by design went from being an academic or doctrinal concept to the category of fact legally proven before a jury. The court answered affirmatively to all the questions about negligence and omission of the duty to warn, recognizing as a matter of fact that the platforms knew of the harm they caused to minor users and did not adopt appropriate measures,” explains Balcarce.

Additionally, another federal trial will begin mid-year in Northern California, pushed by school districts and parents across the country, with similar accusations against Meta, YouTube, TikTok and Snap. The Los Angeles result, therefore, is seen by analysts and lawyers as the first major test of whether platforms can be held responsible not for the content published by third parties, but for the very design of their products.

That point is central because it aims to surround one of the most important legal shields in the industry: Section 230 of US law, which generally protects platforms from being held responsible for publications by their users. In this case, the strategy was different: the plaintiff’s lawyers focused the accusation on functions such as infinite scroll, autoplay, constant notifications and “like” counters, presented as tools designed to maximize permanence and dependency.

During the six-week trial, Meta and YouTube denied that their platforms caused Kaley’s mental health problems. His lawyers argued that The young woman’s picture responded to a troubled childhood and previous family problems, and not to the use of Instagram or YouTube.

Meta’s defense even played a recording before the jury in which the plaintiff’s mother could supposedly be heard shouting and insulting her. For its part, YouTube tried to relativize the use of the platform by stating that, according to its records, Kaley averaged just over a minute a day in some of the functions designated as “addictive.”

None of that convinced the jury. According to the decision, both Meta and YouTube knew or should have known that their services posed a risk to minors, failed to adequately warn of that danger, and acted negligently.. Meta already anticipated that he “respectfully” disagrees. with the verdict and evaluates his next legal steps. Google, owner of YouTube, was more direct: it said it would appeal and maintained that the case “malinterpreta” a YouTubewhich he defined as a streaming platform “responsibly built” and not as a social network.

For the industry, the fear is not so much about the initial amount, which is lower compared to the size of both companies, but rather about what may come later. The real risk, specialists warn, appears if Justice begins to force profound redesigns in the platforms: there it could be called into question the heart of a business based on attracting attention and sell advertising about that time of use.

The ruling also comes just one day after another setback for Meta in New Mexico. There, another jury concluded that the company had endangered minors by not adequately protecting them from predators on its platforms and sentenced it to pay $375 million. Meta also announced that it will appeal that decision. Even the creator of the World Wide Web (WWW)the British Tim Berners-Leerecently defended banning social networks for those under 16 years of age, in line with the recent measures adopted in Australia and Spain.

Together, both cases reinforce a signal that in the United States is already beginning to be repeated in the media and courts: 2026 could become the year in which large technology companies face their own “Big Tobacco” moment, a comparison increasingly used to describe the beginning of a judicial offensive that seeks to demonstrate that platforms not only host risks, but also design them.

“For the first time in history, a jury determined that the design of a digital platform, not its content, constitutes a defective product generating civil liability. This distinction is fundamental: it shifts the axis of the debate from freedom of expression to product safety, and opens a different path of civil liability, which in our country could be associated with consumer defense,” concludes Balcarce.

“When the business model is structurally based on maximizing attention, dwell time and engagement, what is at stake is an economic design that encourages the amplification of content that generates a reaction, often at the expense of the well-being, privacy and development of girls, boys and adolescents,” complements Carolina Martínez Elebi, graduate in Communication Sciences and professor at the UBA in dialogue with Clarion.

In the courts of the United States there is expectation about the precedent that this ruling may set for the rest of the platforms.