Originally Posted by
Loren Pechtel
12mph??
I read about a case where the speed wasn't measured but was probably well under 5mph. (Admittedly, a freak case. A little kid ran behind a backing car. A minor bump, the injuries amounted to a nosebleed and being knocked over. Unfortunately, he passed out from the fall. Observers did nothing because it's was a head injury, you leave those for the paramedics. The kid drowned.)
Oh.
My "example" was hyperbole (c.f "friend of a friend...") to extend Mikeef's extreme example. Yours, however, is genuinely tragic.
There have been numerous recent events in Australia of toddlers and young children killed in school parking lots or household driveways; these presumably happened at low speed too. The overall point remains that - despite these tragic events - we as a society don't ban cars or insist on uniformly low speed limits.