Okay, let's make this more concrete. Here's the school district map for Cherry Hill, NJ, a suburb of Philadelphia: https://www.chclc.org/site/handlers/filedownload.ashx?module...

And here's a route from a residential street to one of the schools on that map within the same school catchment area: https://www.google.com/maps/dir/39.9349018,-74.9901605/Thoma...

I challenge you to find me a walking route between those two points that does not involve crossing a heavily trafficked road.