its just the new way, some people still only have paper licences, no need to change until its lost , address change etc.
sunday at the airport they had my image on the screen and details as he was loking at it, probably the antenna in the loop, all helps to keep everything more secure hopefuly
btw if you live in london,and have an oyster card, they know where youve traveled, same thing
tesco club card , know what you buy etc
i couldnt careless what is known, no reason to hide it !