How do we determine "unintentional"? Does having a blase attitude towards the road qualify? Most people don't even internalise the fact they're driving a ball o

How do we determine "unintentional"? Does having a blase attitude towards the road qualify? Most people don't even internalise the fact they're driving a ball of steel weighing over a tonne with the potential to mame or kill. Is that entirely their fault or of a society that treats driving as a right rather than a privilege and doesn't bother to educate the driver with advanced skills to handle the death machine.