We've got all kinds of crazy crap going on with tech these days. I'm actually a bit worried, especially if RFID chips take off, and work as well as I fear they would. I mean, those things would be like a traveling companion that knows your entire history (once implemented), and posts to Facebook at all hours with or without your consent (clever method to track activity and location).
You mean like huge swathes of the population's phones already do?
Yeah, phones do that; but there are people like me that travel light (no wallet or phone (not even a Facebook account) when going for a walk or something, or even going out, visiting people and the like, really); having one of these things in someone like me is really invasive and unsettling. I mean, I am not 100% committed to my phone like most people are, and don't take it with me everywhere. To track me more easily, an RFID would be more suitable. I still travel light (still no phone nor wallet), and they still collect data via my contact points (gates/doorways, like a market or national park, having an RF receiver and the like; you don't even have to enter the place; standing near the door would be enough.) via my "serial number" and possibly GPS coordinates based on RF-Receiver.
Then add in interactive objects that require such devices to work (guns, ATMs, etc.). In other words, I can be shut out from anything and everything (including my bank account and local market), by having my number "locked". Really inconvenient for people still wanting a normal life. The exploitability of these things can also get sinister really fast (self-driving cars can "glitch-out" resulting in an "unfortunate accident"; or a flying car attempting to mimic 9/11 (ineffectively) for shock value and further population manipulation via media (extraordinarily effectively). They scream "false-flag at-will".), depending on who has control over it (best not be some self-centered irresponsible prick *cough*politicians/luminous-nutballs*cough*). Being without device "locks out" anyway, but at least, with most of my consent/will/life still intact and under more of my own control.
From a cultural standpoint, this will clearly divide the classes, and we'll have something like The Hunger Games in no time. That is, unless "Skynet" gets there first. Personally, I'd rather an AI end us, rather than a politician with excessive power. At least an AI is rational about it.