Stock Markets February 25, 2026

Plaintiff to Testify in Los Angeles Trial Alleging Social Platforms Harmed Her as a Child

Case will shift from what companies knew about youth harms to the plaintiff’s personal account of mental health impacts tied to Instagram and YouTube use

By Priya Menon GOOGL
Plaintiff to Testify in Los Angeles Trial Alleging Social Platforms Harmed Her as a Child
GOOGL

A California woman identified in court as Kaley G.M. is scheduled to testify in Los Angeles about her childhood use of Instagram and YouTube and the mental health problems she attributes to those platforms. Her lawyers contend the companies engineered features and business strategies that hooked young users despite known risks. The trial has moved from examining what the platforms knew about harms to children to focusing on the plaintiff’s specific claims, with defenses citing her personal history and choices around safety tools.

Key Points

  • The plaintiff, identified as Kaley G.M., began using Instagram at age 9 and YouTube at age 6 and alleges the platforms contributed to depression and body dysmorphia.
  • Early trial phases examined what Meta and Google knew about youth harms and their business strategies; the focus has now turned to the plaintiff’s personal testimony and medical records.
  • Defenses include Meta noting the plaintiff’s history of abuse and family difficulties and YouTube pointing to her reported nonuse of platform safety features and measured average viewing times.

In Los Angeles on Feb. 25, a woman identified in court as Kaley G.M. is expected to take the witness stand to describe how early exposure to social media shaped her mental health. The case, now in trial, centers on her contention that using Meta Platforms’ Instagram beginning at age 9 and Google’s YouTube beginning at age 6 contributed to conditions including depression and body dysmorphia.

Her attorneys say the social media companies pursued profit by designing services that would draw in young children and keep them engaged, even when there was evidence the platforms could harm younger users’ mental health. Those allegations are part of a broader international backlash over social media’s effects on children and teenagers; Australia has instituted a ban on young users of the platforms and other nations are reported to be contemplating similar restrictions.

The early stages of the trial concentrated on internal company knowledge and business strategies related to youth users. Trial testimony and documents addressed what the companies knew about how social media used by children and teens can affect mental well-being, and how product choices related to younger users were discussed internally. CEO testimony in the case included an acknowledgment that Meta discussed potential products for children but did not roll them out.

As the case progresses, the focus has shifted to the plaintiff’s account of the personal consequences she attributes to her use of the services. To prevail, her legal team must demonstrate that the manner in which the platforms were designed or operated was a substantial factor in causing or aggravating her mental health difficulties.

Meta’s opening statements to the court highlighted aspects of the plaintiff’s background. According to the company’s lawyer, her medical records document episodes of verbal and physical abuse and a difficult relationship with her parents following their divorce when she was 3 years old. Those records were presented as part of the defense’s effort to show other factors bearing on her mental health.

The plaintiff’s counsel has pointed to an internal Meta study indicating that teens experiencing challenging life circumstances reported more frequent habitual or unintentional Instagram use, a finding the lawyers presented as evidence of the platform’s role in habitual engagement among vulnerable users.

Specific product features are also under scrutiny in court. Plaintiffs’ lawyers argue elements such as autoplaying videos, an infinitely scrolling feed and social validation mechanics like "like" buttons were built to extend user time on the platforms and that filters targeting appearance could distort young users’ self-image. Those design choices are alleged to have relevance to youth mental health harms.

Representing YouTube, the company’s attorney has argued the plaintiff did not make use of platform features intended to protect users from bullying or to manage viewing time, citing a court filing. The filing references records showing an average daily viewing time for YouTube Shorts of approximately 1 minute 14 seconds and an average time spent streaming YouTube videos over the past five years of roughly 29 minutes.

The litigation now juxtaposes testimony and studies about platform design and youth engagement with the individual plaintiff’s medical and usage records. The court will weigh whether the defendants’ product designs and operational decisions were a substantial contributing factor to the mental health issues the plaintiff describes.

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Risks

  • Legal burden of proof - The plaintiff must establish that platform design or operation was a substantial factor in causing or worsening her mental health issues, an outcome that is uncertain and central to the case (affects legal and technology sectors).
  • Competing evidence - Medical records detailing abuse and family circumstances and assertions that safety tools were not used may complicate establishing causation (impacts litigation strategy and potential liability for social media firms).
  • Regulatory and reputational uncertainty - Ongoing public and governmental responses to social media’s effects on children, including existing bans and possible further curbs in other countries, create an uncertain environment for platform business models (affects tech, public policy, and social media markets).

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