Four US states, California, Colorado, Kentucky, and New Jersey, have accused Meta of designing the platforms to hook young users, fueling anxiety, depression, and even suicide. Instagram head Adam Mosseri testified that few teens used a key safety feature before it was defaulted, amid a trial over Meta's alleged addictive design for children. Key points and original sources are listed below.

• Four US states, California, Colorado, Kentucky, and New Jersey, have accused Meta of designing the platforms to hook young users, fueling anxiety, depression, and even suicide.S1

• Instagram head Adam Mosseri testified that few teens used a key safety feature before it was defaulted, amid a trial over Meta's alleged addictive design for children.S2