I suppose it could be used to streamline ID verification for online purchases? I vape, and whenever I order supplies online I have to go through an ID verification process, usually involving uploading a photo of my driver’s license to some system. If they had a way to tokenize this step, that would make the ordering process a lot simpler.

Could also perhaps be used for something like carding at a bar; just a quick tap on their tablet and they don’t have to sit there looking for watermarks and stuff if you look too young to be there.