In China pajamas are not necessarily sleepwear. The guy in this photo is sporting a pair of pajama bottoms and slippers as he walks home from shopping. In the summer pajamas serve as a sort of leisure suit for some; it is not uncommon to see people in restaurants wearing pajamas while having dinner. And why not? What we put on and where we go in it is determined as much by culture and habit as it is by the intrinsic nature of the clothes themselves. Still, and call me a cultural chauvinist if you must, I get a kick out of scenes like this one.