Are you from Japan?
lionhearted: Japan is a lot safer than almost anywhere else in the world, so you get preteen kids from Yokohama going to hang out in Tokyo. That'd be a bit like some 12 year old American kids going to "hang out in Manhattan" - with no detailed plan, supervision, etc.But largely socially emancipated at six years old? I don't think so. Maybe somewhere between 8 and 12, which is a few years younger than a lot of places, but nothing crazy.