Zero-Knowledge Proofs Aren’t Age Verification Silver Bullets

Age verification (laws and regulations requiring platforms and websites to assure or estimate that a user seeking to use an online service is of a certain age) is everywhere. At the time of writing, about half the states in the US have some internet age verification law in place, and dangerous proposals, from the KIDS Act to the Kids Online Safety Act (KOSA), have been advancing at the federal level. European Union member states are moving toward having age verification in a centralized app by the end of this year. Australia famously now has one extremely broad restriction in place. Most age verification laws tend to fail at their primary goal of barring kids from being online or from entering only specially designated zones, not to mention they pose a significant threat to everyone’s privacy. Some proponents of these age-based internet restrictions think they've found the silver bullet: Zero-Knowledge Proofs (ZKPs). We wrote about ZKP’s when they were first rolled out in the age verif