I live across the road from the school. DS is 5 & goes alone a fair bit. I'll watch him cross the road from the window, just so he knows I'm watching & looks properly. I'm in a tiny town & if cars come this way to drop kids off there's maybe 7 cars at most. And that's only if its raining. The whole town is close enough to walk, or out of town & on the bus.

It depends on where you live, how far you are from the school, how much traffic there is etc. I could live across from the school in the middle of Sydney & I'd be walking them! It also depends on the child & their maturity & awareness of their surroundings.