I have never carried ID as the only photographic ID I have is my passport (paper driving licence) and why would I carry that around? A few months ago I got asked for ID at a local Morrisons by some old codger on the tills. I just lol'd then he asked for it again. I'm 31 and heavily balding so I thanked him for the compliment, pointed at my head and asked if he really thought I was too young. He laughed and let me through. One of my mates the same age still gets ID'd for cigarettes.