It's a sad reflection on our society that we have to create a special day for this. When I went to school, EVERY day was walk to school day. And I"m not talking about the 1950's, I'm talking about the 90's, I'm only 23. My mom would walk me to school until I was about 8, and then I walked by myself. Rain or shine, winter or summer, even when the snow was 2 feet deep.
And I don't see how cars make walking dangerous, it's not like cars drive on sidewalks? Maybe they mean when crossing the street, but that shouldn't be dangerous either if parents taught their kids properly how to cross the street. I had to cross a very busy street on my way to school, and it never occured to me that it was dangerous. You wait until it's green, then you cross, quite simple even for a kid.
I seriously wish that gas gets WAY more expensive.