How the Meta and YouTube child safety rulings end Big Tech invincibility

For years, parents, teenagers, pediatricians, educators, and whistleblowers have pushed the idea that social media is detrimental to young people’s mental health and can lead to addiction, eating disorders, sexual exploitation, and suicide.

For the first time, juries in two states took their side.

In Los Angeles on Wednesday, a jury found both Meta and YouTube liable for harms to children using their services. In New Mexico, a jury determined that Meta knowingly harmed children’s...