All the way back in kindergarten, we went on walks to places and us kids, ages 4-6, were taught how to navigate safely. Stay on the sidewalk, wait for the green light. Look left, right, left again (unless you're in the UK. I guess...)

Under these conditions, I don't understand why it matters how big the car is. Teach your children not to cross the road.

I spent hours roaming the streets on my bike as a kid in Germany, now I hear my coworkers saying things like "I don't leave my 10 year old unsupervised for more than 10 minutes. If I have to go somewhere, he's coming with me."

It leaves me flabbergasted.