They don't even have to move to another country. They can move to parts of the United States that don't fluorinate or that don't have municipal water at all, or just get a gravity filter.
Nitpick, fluorinated water, i.e. treating water with fluorine gas, produces hydrofluoric acid, oxygen and heat. Not tasty. Or keep your face on-y.
Fluoridated water matches up the fluorine atoms with a buddy who keeps them in check before introducing it to water. (Sort of like why you wouldn’t want to eat a chunk of sodium.)
Nitpick, fluorinated water, i.e. treating water with fluorine gas, produces hydrofluoric acid, oxygen and heat. Not tasty. Or keep your face on-y.
Fluoridated water matches up the fluorine atoms with a buddy who keeps them in check before introducing it to water. (Sort of like why you wouldn’t want to eat a chunk of sodium.)