1. As Alex says “…conventional carriers may not require any photo ID at all for European domestic flights”. If it is possible on mainstream airlines between major European mainland cities (as indeed it is) why are many British-Isles based locos so petty and demanding?
2. I am with you, Martyn, on ID cards. It would not be a disaster – and might be very convenient – for the British to have ID cards. It would save all that passport plus utility bill malarkey when you are making a purchase where it is reasonale to have to establish your identity. However, these should be very simple ID cards on the model of most European countries. The idea was wrecked by the Blair and Brown governments by trying to create ID cards full of biometric information, at a ludicrous expense.