This level of surveillance is a shame given that by luck of never being invaded by the Nazis there's no ID cards in the UK. Somehow also people managed to stop attempts to get ID cards introduced. It might even be because of this. That is, it's easy for other European governments to track people as they have to carry ID at all times. Because the UK government are worried about the lack of this, they go down the CCTV…
The end result is that something as simple as proving who you are on a document, or renewing your driving license, requires that you provide every address you've lived at for 3 years and essentially get a credit check. Electoral roll data is sold to third parties and is used for junk mail as much as it is identity checking.
An ID card would put that entire business venture to an end, because your personal ID number and embedded certificates would be more than enough to prove you are who you say you are. This is comparatively a blessing on the continent, where many EU countries have updated their tech. Being a Brit living around Europe for some years, the hoops I have to jump through to prove who I am in the UK are an incredible annoyance and my letter box is already filling with unwanted solicitations. I'm probably being tracked _more_ than I was with my EU ID cards!