The movement of parents concerned by their kids' smartphone use just gained an unlikely disciple: socialite and DJ Paris Hilton. Hilton isn't alone in thinking smartphones can cause damage to young kids. "The biggest effects of social media happened during puberty, especially early puberty," he says. No social media before age 16. "There's no clear evidence that giving children access to social media early is better able to prepare them for adulthood later on," Rausch says.

---

Persons: DJ Paris Hilton, doesn't, Hilton, Johnathan Haidt, Z, Zach Rausch, Rausch Organizations: DJ Paris, Everything, Entertainment, NYU, Stern School of Business, CNBC