Opening statements commenced Tuesday in a landmark US federal court case where 29 state attorneys general, representing a bipartisan coalition, are suing Meta, the parent company of Facebook and Instagram. The states argue that the company's popular social media applications are intentionally designed to negatively impact the mental health of young users.

The trial, presided over by District Judge Yvonne Gonzalez Rogers in California, is expected to span several weeks. While an eight-person jury is present, their role is advisory, with the judge ultimately responsible for the final decision in the case. This legal battle centers on allegations that Meta's business practices prioritize user engagement and data collection over the well-being of its youngest demographic.

Attorneys for the states presented their case, with Megan O’Neill, a deputy California attorney general, stating that Meta's products are engineered to "hook the users, hold them for as long as they can, harvest their data, and then hide the truth from the public." She emphasized that these design choices were "especially well for kids." The lawsuit, initially filed in 2023, contends that Meta's app designs foster excessive use among children and that the company illegally collected data from users under 13.

The implications for Meta could be severe, with potential fines reaching as high as $1.4 trillion, a sum nearly equivalent to the company's current market capitalization. The states are seeking to hold Meta accountable for what they describe as a deliberate disregard for youth mental health and user safety, a narrative that gained significant traction following whistleblower claims in 2021.

Meta has consistently denied these allegations, asserting its commitment to protecting young users. A company spokesperson highlighted recent initiatives such as the 2024 launch of Instagram Teen Accounts, which restrict contact with underage users, and parental controls for setting usage time limits. The spokesperson stated that the states' claims are unsubstantiated and that Meta is being penalized for industry-wide challenges.

"The State AGs may call this a landmark case, but their limited claims are unsubstantiated and their financial demands are vastly disproportionate," Stephanie Otway, a Meta spokesperson, told Al Jazeera. "The AGs offer no proof anyone in their states was misled, claim benign features like having an additional Instagram account somehow harmed their residents, and attempt to penalize Meta for industry-wide challenges like age verification."

The coalition of states, however, argues that Meta's profit-driven model necessitates the engagement of children and requires assurances of their safety to appease concerned parents. The core of their argument rests on the alleged intentional design choices that exploit psychological vulnerabilities in young users, leading to addiction and adverse mental health outcomes.

This trial represents a significant legal challenge for one of the world's largest social media companies. The outcome could set a precedent for how technology platforms are regulated concerning child safety and mental well-being, potentially influencing future legislation and industry practices globally.