What is the appropriate age range for kids to join social media?

The U.S. Surgeon said recently that 13 is too young to be on social media. Yet, Meta and Tik Tok allow users to join their social media sites as young as 13. We speak with a child psychiatrist from Standford Children's Health, Dr. Bradley Zicherman who says social media has the power to impact brain development if exposed to it too soon.