If theres anything Ive learned from the fire departments insistence to have big wide roads so that they can shave off nano seconds to their response time, sometimes theres bigger things than persieved immediate safety to the individual.

For example, if we all drove Kei trucks slowly on small roads, a collision would not be as bad as driving a big safety focused truck at 80mph.

Still, your point is well taken. Maybe there are some ways to make safe small vehicles, including trucks, that arent explored yet.