"Proof-of-Personhood is a powerful concept but the solutions that exist today haven't seen adoption because onboarding is invasive and high friction."

https://www.coindesk.com/business/2024/05/15/humanity-protocol-raises-30m-at-1b-for-decentralized-identification-to-rival-worldcoin/#:~:text=Humanity%20Protocol%2C%20which%20uses%20palm,planned%20for%20the%20second%20half.