No behavioral advertising targeting minors

Behavioural advertising targeting minors is prohibited under COPPA §312.2, GDPR Art.8, CCPA §1798.120(c), and the UK Children's Code. These are not soft guidelines — they are enforced with fines, app removal, and in the US, FTC consent decrees. Apps that serve interest-based ads to all users without age verification treat every minor as an adult for advertising purposes. The failure is structural: if the ad SDK does not have a 'user may be a minor' code path, and the app does not pass age data to the SDK, behavioural targeting of minors is happening by default for every minor who uses the app.

Add tagForUnderAgeOfConsent to ad requests for users under 16. In Swift:

GADMobileAds.sharedInstance().requestConfiguration.tagForUnderAgeOfConsent = .true

Implement age verification at account creation and pass the verified age to ad SDK configuration — do not rely on self-reported age from a client-side form alone. For apps where users below 13 may be present, serve contextual-only ads to all users, or use COPPA-certified networks exclusively. Behavioural targeting must be opt-in for all adults and off-by-default for any user who may be a minor.