Obviously if it smells, you should flush. But in my experience, my urine in the toilet bowl never smells outside of when I eat asparagus. Perhaps it is a sign to drink more water?
The education is also about water not being an unlimited resource. I have no idea how educating or reminding people of that is patronizing or arrogant, but to each their own.
Sidenote, if I understand correctly, the environmental/resource impact of water usage (outside of droughts) is that treating/filtering water uses electricity, not so much that the water itself is being wasted. Am I on the right track here?
The education is also about water not being an unlimited resource. I have no idea how educating or reminding people of that is patronizing or arrogant, but to each their own.