TikTok Age Assurance: Keeping Minors from Faking Their Birth Date When They Register

TikTok wants to keep people under 18 from giving a false age when they create an account. How would you tackle this? ```hint Ask why they lie Before choosing a verification method, think about which minors misstate their age, what they gain by doing it, and which moments after signup carry the most risk if they succeed. ``` ### Clarifying Questions - Is the bigger worry children under 13 joining at all, or teens aged 13 to 17 claiming to be adults to reach features such as LIVE and gifting? - Must the fix work only at the moment of signup, or can it include catching a false age on accounts that already exist? - How much drop in signup completion would TikTok accept in exchange for stronger checks? - Which countries are in scope, given that age-assurance laws differ between markets? ### What a Strong Answer Covers - A realistic goal that accepts a self-declared age can always be faked, with separate treatment for under-13 children and 13-to-17 teens - Age-assurance methods layered by risk, with the strongest checks placed where a false age does the most harm - Detection and correction after signup, including human review and appeals - Privacy, fairness and accuracy trade-offs of collecting faces or ID documents, especially from minors - Success metrics that work without knowing true ages, with guardrails on signup conversion and adults wrongly restricted ### Follow-up Questions - Facial age estimation is least reliable close to the cutoff. What do you do with someone estimated at 17 to 19? - How would you estimate how many minors still get through when you never learn anyone's true age? - One country starts requiring verified age for every account. How do you comply there without degrading signup everywhere else?