This is one of the best days to easily see whether a neighborhood is walker-friendly.
Can kids easily spend an hour or more walking from home to home, or do parents have to drive them from place to place?
Can they easily cross the streets, or does it feel dangerous?
Does it feel pleasant and safe to be walking around?
Does it feel like there are "windows on the street," with people inside homes well knit into the fabric of the streetscape? Or are kids mostly see blank walls or big garage doors as they walk in the neighborhood?
If you run out of candy while it's still light out, could you send a middle-schooler out on foot to buy some more?
Could kids walk home from school in costume and trick or treat on the way?
If local stores were giving out candy, could kids easily walk from store to store?