I dunno -- it's not like you know people in your neighborhood the way humans used to know members of their tribes. And I've known people in the neighborhood who seemed totally normal and safe, and then got arrested for something shocking. We're not spending all day long with even our next-door neighbors, let alone the ones five blocks away.

Having standards in training, operation, and oversight of childcare seems just as important as safety standards in the food supply. Even though everybody cooks at home, you're not allowed to run a restaurant without certifications and inspections either. And thank goodness.