The case stems from allegations that Meta designed features on its platforms to maximise engagement among young users while failing to adequately protect children from potential harm. AFP reports that after the states sued Meta in 2023, four states — California, Colorado, Kentucky and New Jersey — were selected to represent the broader claims in the trial. The plaintiffs are seeking to establish that Meta knowingly designed features that encouraged compulsive use among children and young people. The trial is taking place amid a growing wave of legal challenges against major social media companies over alleged harm to young users. ADVERTISEMENTThe case also forms part of a much broader wave of litigation involving Meta and other major technology companies over alleged links between social media use and harm to young people.