"Despite dental pressure, 99% of western continental Europe has rejected, banned, or stopped fluoridation due to environmental, health, legal, or ethical concerns"
Fluoridation status of some countries
imho we don't need it, people just need to brush. I don't believe fluoride in the water will help prevent teeth problems for people eating McDonalds and drinking soda-pop-cola every day. For homeless or poor people maybe, but having healthy teeth is probably the least of their worries.