School phone policies and their association with mental wellbeing, phone use, and social media use (SMART Schools): a cross-sectional observational study – Update on the young people and those damn video games. // “There is no evidence that restrictive school policies are associated with overall phone and social media use or better mental wellbeing in adolescents. The findings do not provide evidence to support the use of school policies that prohibit phone use during the school day in their current form, and indicate that these policies require further development.” // See Tyler Cowen’s disclaimer. // I mean, it could be one of those “phones don’t ruin kids lives, kids using phones to ruin their lives ruins their lives” situations.