Fluoride ions have always existed in water, fluoridated or not. When these ions exist at a certain concentration, researchers have unquestionably determined there to be a significant reduction in dangerous dental infection within the population served by that water, with no adverse effects on anyone. So, the question is, why in the world would anyone choose not to adjust the level of a mineral which they consume in their water anyway, by a minuscule amount to the concentration at which they will receive such a valuable benefit from that mineral? There are no adverse effects on anyone by so doing. The cost-savings to communities by so doing are well documented in the scientific literature. There is no effect on the color, taste, or odor of the water caused by so doing. The logic of refusing such a valuable, cost-effective, disease prevention benefit, which has no downside, whatsoever...is highly questionable, to say the least.