Reading this inspired me that it would be nice if there were a do-not-film-me standard: your mobile phone sends out a do-not-film-me request with a (rotating) hash of your facial biometrics via Bluetooth. All cameras (glasses, phones, etc.) then blur your face in recordings.
Similarly, a venue could request a do-not-film-this-venue setting and make sure no photos are taken at a party.
Similarly, a venue could request a do-not-film-this-venue setting and make sure no photos are taken at a party.