Gov. Spencer J. Cox of Utah signed a sweeping social media bill on Thursday afternoon that could dramatically limit youth access to apps like TikTok and Instagram, potentially upending how many minors in the state use the internet.The Utah Legislature passed the measure this month, despite opposition from tech industry groups and civil liberties experts. It is the first state law in the nation that will prohibit social media services from allowing users under 18 to have accounts without the explicit consent of a parent or guardian.The new measure will also require social networks to give Utah parents access to their children’s posts, messages and responses. And it will require social media services to block Utah minors from accessing their accounts from 10:30 p.m. to 6:30 a.m., a default setting that only a parent or guard …
