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Trial begins in lawsuit by 29 states alleging Meta harmed youth mental health

A jury trial began Tuesday in a lawsuit brought by 29 states alleging Meta designed Facebook and Instagram to be addictive for children.

Published August 18, 2026 at 6:11 PM EDT

The short answer

A jury trial began Tuesday in a lawsuit brought by 29 states alleging Meta designed Facebook and Instagram to be addictive for children. A trial began Tuesday in Oakland, California, to determine whether Meta, the parent company of Facebook and Instagram, intentionally designed its platforms to be addictive for children and teenagers.

Trial begins in lawsuit by 29 states alleging Meta harmed youth mental health

The Facts

Who
Meta (Facebook/Instagram), 29 U.S. states (including California and New York), and a jury.
What
The start of a six-week jury trial regarding Meta's social media platforms and their impact on children.
When
Tuesday
Where
Oakland, California
Why
To determine if Meta intentionally hooked children on its platforms, violated privacy laws, and should be forced to change features like like counts and infinite scroll.

Timeline of what happened

Key dates and decisions, in the order they occurred.

  1. October 24, 2023

    Lawsuit filed by 29 states against Meta

  2. August 18, 2026

    Trial begins in Oakland, California

A trial began Tuesday in Oakland, California, to determine whether Meta, the parent company of Facebook and Instagram, intentionally designed its platforms to be addictive for children and teenagers. The lawsuit, filed by 29 U.S. states including California and New York, alleges the company violated federal and state privacy laws while misleading the public about the safety of its products for young users.

The legal action follows a 2023 complaint in which state attorneys general claimed Meta knowingly allowed underage users on its platforms and used features that harmed their mental health. Meta has denied these allegations, maintaining that its platforms are safe and that it has implemented tools to help users manage their time online.

During opening arguments, Megan O'Neill, a lead attorney for California, cited internal Meta documents showing that "1 in 5 teens says Instagram makes them feel worse" and argued that features designed to increase time spent on the apps conflicted with user well-being. In response, Meta’s attorney Paul Schmidt argued that the same research showed 41% of teens felt better using the app and another 41% reported no effect. Schmidt further contended that "social media addiction does not exist" as a scientific consensus and that privacy laws actually limit the company's ability to verify the exact ages of all users.

For the average household, a ruling in favor of the states would likely result in a visible change to the user interface of these apps for children and teenagers. Parents and students would notice the removal of engagement metrics and could see new age-verification requirements. The states argue these changes are necessary to protect the mental health of minors, while Meta argues it already provides sufficient tools for users to regulate their own behavior and that the proposed changes could interfere with positive social experiences for millions of teens.

The outcome could set a precedent for how all social media companies are regulated regarding minor safety and product design. A decision against Meta might encourage similar litigation against other tech firms or lead to new state-level mandates on app features. The jury trial is scheduled to last six weeks in the U.S. District Court in Oakland, during which the court will review millions of internal Meta documents, including emails and chat logs from executives like CEO Mark Zuckerberg and Instagram head Adam Mosseri.

Summaries are written by The Plain Record to state the facts of a story plainly and without political slant. See our editorial standards, or report a correction.

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Questions readers ask

What happened: Trial begins in lawsuit by 29 states alleging Meta harmed youth mental health?

The start of a six-week jury trial regarding Meta's social media platforms and their impact on children.

Who is involved?

Meta (Facebook/Instagram), 29 U.S. states (including California and New York), and a jury.

When did this happen?

Tuesday

Where did this happen?

Oakland, California

Why does this matter?

To determine if Meta intentionally hooked children on its platforms, violated privacy laws, and should be forced to change features like like counts and infinite scroll.