I remember talking to a guy from Zimbabwe about 15 years ago, when he showed me his metal identification card with etched photo and information (so as to survive a fire, etc.) -- he said that at any place at any time he could be asked to provide identification and must comply by law. That made me realize how much we take our freedom for granted here. When was the last time you RANDOMLY had to show ID? Never! Only if you're up to something or in a place that makes you suspicious.
The choices we are free to make, every day, without threat of repercussions, are a freedom that many many people in this world do not have the good fortune to experience!