I can only see number 3.) to be actually beneficial to some people. Most of those could easily go horribly wrong. Like nobody let's police to backstage while th

I can only see number 3.) to be actually beneficial to some people. Most of those could easily go horribly wrong. Like nobody let's police to backstage while there is crime going on. Or supermarket doing post purchase price adjustments and when you look at the receipt, they analyze your micro-expression and optimize their scamming to maximize their earnings while not pissing you off too much. All of the rest could have been done decade ago if people would simply accept RFID implant. And most people are very skeptical of that, because in almost all of your examples the tech could be used for evil too. Would you accept free RFID implant? If the only price was that the RFID fingerprint would be completely public.