It's a selfie not a “face scan”... I really struggle to see the issue. Sinister intent uses of my biometrics have already been fully signed over to CCP and a multitude of other foreign governments by me and anyone who has been to the mainland or just about any other non-European country. Not to mention the corporate controlled array of microphones (Alexa) around my apartment, Google knowing everything about me, and all the rest.
Going off grid is indeed getting harder year by year, but at the point it crosses personal thresholds for privacy vs convenience we all know how to get scanned out at the airport.