Now you need to admit that 32MPH is not an absolutely dangerous speed...if that were so, then there would not be 35MPH school zones ANYWHERE.
I feel sorry for anyone who breaks the school zone speed limit and runs over and kills my child.
The mph must depend on the size of the school, it's location and population. I don't know how they arrive at what is and isn't safe. But, when the signs show, slow school zone, and there's a posted 20 mph limit, I expect all drivers to respect the limit and drive accordingly. The life of my child may depend on it.