> Reading over many of these comments, the people saying that kids can't roam in their areas are living in suburban places where you need a car to go anywhere, and it's simply not safe as a pedestrian.

It's safer as a pedestrian in the suburbs than in urban environments, which is one of the reasons people move to suburbs to raise kids. In fact, one of the reasons public transit doesn't work in suburbs and you need a car to get anywhere out of your residential neighborhood is that suburbs are usually designed to limit both traffic volume and traffic speed in residential neighborhoods (which typically include small parks and other facilities specifically for for kids) to provide pedestrian safety (which has a side effect of requiring longer, both in road distance and time, trips to anywhere else than straight-libe distance would suggest, and making efficient public transit routes impractical where this is done through branching designs without connecting loops, and making distances impractical for walking out of the neighborhood to other areas -- though this is sometimes, in better suburbs, mitigated by walking/bike paths which make non-carbonated distances closer to straight-line than the motor vehicle routes.)