> Countries without national ID cards are not especially more privacy minded
Two interesting things here: They are uncontroversial because people are so used to them and, yes, the UK is much more privacy minded than, e.g., France in that regards.
In France everyone is used to carry their ID card with them (ID cards include the person's address and finger print is taken when ID card is used to anyone older than 13). Police have the right to ask for proof of ID without cause, and failure give them the right to detain the person until ID can be assertained (which means being driven to the police station). The history od ID cards in France is indeed one of state surveillance and control, and, tellingly ID cards became mandatory under the Vichy government in 1940 and although they have no longer been so in law since 1955, they de facto still are in daily life.
In the UK people are free to go about their lives with no ID and the police have no right to stop and ask someone to identify themselves (or any other questions) without cause. There is a big resistance against creating ID cards.
I read other comments that in the UK driving licences are de facto ID cards but I think this misses the point above. Of course they are situations in daily life when one needs to prove their ID (banks, etc). But the point is protection against the state/authorities and against being forced to identify yourself for no imperative reason.