Lie! In some countries in Europe people have ID cards, but in others not.
You know only your own situation, do not assume it is everywhere. Besides, it was this continental-inspired demand that just sits in the back of my mind, when some ass in a uniform can demand, at his pleasure, that I "identify myself," for no reason, at any time...anywhere. Brings to mind Gestapo agents demanding "papers!"
Stuff it!