Totally OT, but you guys are making me nervous about letting my 2nd and 4th graders walk home from school today alone! (First day of school, it's only about 0.5 miles, and you can see it from my driveway, but still...although perhaps I should be more worried that they'll kill each other!)
It totally depends on your local culture. Our school district will not even let elementary school kids off the bus unless there is a parent at the bus stop to meet them. If your school releases the kids to walk home without a parent, I can't imagine that you'd have any problems.