Mine started last year. They were in 1st, 2nd and 4th grades and walked together 3 1/2 blocks. They started walking home occasionally the year before (son kindy, 1st and 3rd grades). I would pick them up and let them walk home ahead of me or walk all the way while I went the other way to the store.
They are now in 2nd, 3rd and 5th and take the bus which stops down the street from us. They walk themselves to and from the bus stop as do all the kids in our neighborhood (there are never parents at the bus stop which is kids 1st-5th).
In the end it really depends on the child and the neighborhood. My kids are allowed to run all over so walking to and from school/bus stop is no big deal.
at 12:16 AM on Dec. 16, 2010