META WILL USE AI TO ANALYZE HEIGHT AND BONE STRUCTURE TO IDENTIFY IF USERS ARE UNDERAGE

Summary from the TLDR Marketing newsletter

Meta is expanding AI systems to detect underage users on Facebook and Instagram by analyzing photos, videos, and profile activity for cues like height, bone structure, captions, and interactions. The goal is to estimate age, not identify individuals. Accounts flagged as under 13 may be deactivated until age verification is completed. The system is already live in select regions and will expand globally alongside stricter Teen Accounts with added safety controls for younger users.