Our towns and cities are lacking something important, and I was reminded of this during a recent visit to Hong Kong. There, senior citizens fill the social niche that teenagers do in Auckland. They loiter in the local square with their mates, laughing raucously. When they exercise in the park, their music precedes them, emanating from tiny boom-boxes clipped to their backpacks. Each morning, I woke to their voices chatting in the street, three stories below, over their first cigarette of the ...