Beckett - the fact us we still do have choice re ID cards whether we are in or out of the EU.
I don't honestly see what other countries chose to do really has a bearing on this. I do realise this sounds silly when quoting Australian research into ID cards earlier, but this was around voter fraud.
Please correct me if I'm wrong but I think in Germany you can take your polling card with you and then you don't need ID.
In Sweden (I'm nearly certain it's Sweden, not Norway) if you have no ID with you, others can verify who you are verbally - obviously someone who is with you for example or otherwise knows you.
I still maintain, however, that there are lots of ways to crack the very tiny voter fraud nut without this draconian measure.