In recent years, youth sports have quietly morphed from free community gatherings into a big business, with private leagues and one-on-one trainers capitalizing on a growing impulse to frame a child's athleticism as a ticket to their future. Vox senior correspondent Anna North discusses her article on the subject, headlined "The hidden forces ruining youth sports." Plus, the latest on RFK Jr.'s feud with the American Academy of Pediatrics over Covid vaccination guidelines for kids.