<h1>Social platform sets default PG-13 teen limits, opt-out only with parental permission and stricter parental limited content controls</h1> A social media company announced default PG-13 restrictions for teen accounts, requiring parental permission to opt out and adding a stricter parental 'limited content' setting; the measures bar teens from following, interacting with, or being contacted by accounts deemed age-inappropriate and expand automated filtering of sensitive search terms and AI responses. Critics question implementability and see the move as regulatory preemption rather than a substitute for independent oversight, transparent audits, and statutory duties proposed in pending kids' online safety legislation. Enforcement challenges include age misrepresentation and opaque AI detection metrics.