It's Saturday night, and as one group of 12-year-old girls prepares to head out for a night at an all-ages dance in Toronto's nightclub core, another group of preteens is busy fussing over their expensive gowns and shoes and wheedling their parents to arrange a limousine for their Grade 8 graduation. In the week that has followed an altercation involving a 12-year-old girl stabbed on the streets of Toronto's Entertainment District at 2:30 a.m. last Saturday, there has been an outcry over parental abdication of responsibilities, calls for a strict children's curfew, and considerable hand-wringing about what kind of society...