On the road, one notices numerous scavengers. They normally associate in groups. One sees clusters of scavengers well before the stench of decomposition becomes apparent. Seen in the distances, they are gloomy, unfastidious harbingers of death. Unwelcomed, they do serve the necessary biological function of clean up and recycling. Archaic cultures such as Zorostrians and Comanches incorporated scavengers in their burial rituals. They would clean the bones of organic tissue. The presence of scavengers alert us to prepare for the reality of life's conclusion. That is probably why we find them so adverse and distasteful.
Today I attended the deployment of a distracted driver's simulator at the Univ of Texas San Antonio. After some media, I drove back to Austin for a high school talk. Most of the talks have well received, and many students appear impacted. In reality there are many people who are resistant to changing behavior until they are personally affected. The process advances at at a glacial rate.