A new law in Utah that goes into effect next year states that anyone under 18 needs parental permission to use social media. Is it a necessary step to protect children from harms associated with social media, or are we blunting a tool of expression for the youth?  Guest: Dr. Mitch Prinstein, chief science officer at American Psychological Association Host: Lizzie O’Leary If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next TBD. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices