[HillaryBriss]

Ok, but, could it be that the fee charged to parents was simply too low?

Can't we just view "the right to speed" as a service offered by the government and then apply the usual price and demand logic to it?

[JoeAltmaier]

I've had the same idea - a geometrically increasing 'fee' for road use depending on speed. Kind of like toll roads, but maybe even most roads. If you want to spend the money (and have the money, thus likely the deep pockets to compensate for damage) then go ahead!