Dnf, do you use a puzzle-proof ID or something?

What the subject wants to ask is "is dnf face used to prevent addiction to games and verify ID cards?" Or something. "Dnf is a health system designed to protect the health of minors and prevent them from indulging in games. Authentication means that you need to enter the player's ID number to verify whether the player is an adult. Face recognition is to prevent people from playing games, verify playing games with other people's ID cards, and avoid the phenomenon of indulging in games.