At the center of the debate is a bill from Sens. Ted Cruz (R-TX) and Brian Schatz (D-HI) called the Kids Off Social Media Act (KOSMA), which they say will protect children and “empower parents.” One of the main promises of KOSMA is simple and dramatic: it would ban kids under 13 from social media. Based on the language of bill sponsors, one might think that’s a big change, and that today’s rules let kids wander freely into social media sites.