Wow, all of that really really bites!
We have sidewalks, it's a 30 mph street with a 25 mph school zone and there's a small shoulder on that main drag with a stoplight and crosswalk coming from the neighborhoods across the street to the school. The principle said the main worry was THE OTHER PARENTS THAT DROP THEIR CHILDREN OFF BY CAR.

WTF indeed!
So don't ride or walk to school, cut both playground and gym time, feed 'em junk food and/or drinks at school, increase homework amounts so they can't get out when they are home and marvel at the increase of obesity.
