I don't see how this is stoppable; a hundred other companies and probably even open-source projects will be doing this soon, not to mention governments and law

I don't see how this is stoppable; a hundred other companies and probably even open-source projects will be doing this soon, not to mention governments and law enforcement agencies and immigration authorities in every country. I'm wondering about the end result when every person is identified in real time the moment they enter your office, store, event, or cross your path on the street, along with their photographic life history.