Good point -- having grown up in the 'burbs, I've had a driver's permit/license since high school, but I think a fair number of city-dwellers don't bother with getting or keeping one. Social Security cards are pretty useless -- no photo -- and passports are expensive, even though they now last for 10 years.
But I also agree that the underlying problem was panic and disorganization-- if you don't even think about what could happen in a crisis or problematic situation (let alone take any steps to prepare), it's very difficult to be practical or even rational when TSHTF.