Meta is rolling out what it describes as its biggest update yet to Instagram's "Teen Accounts," with new protections guided by PG-13 movie ratings. The company revealed Tuesday that beginning this week, teens under 18 will automatically be placed into an updated "13 " content setting, which determines what they can see on the platform. The new setting is designed to mirror the kind of content teens might encounter in a PG-13 movie, with tighter controls on language, themes, and visuals, accordin