I used to think the anti fluoride guys were crackpots...ditto with "anti vaxxers" and lo and behold now we have anti maskers. Even if you are in the city I think you can have your cake and eat it too...reverse osmosis systems are two or three hundred bucks on amazon and not that hard to install. Buy the extra filter thing that fixes the PH (filtration lowers PH and makes water more acidic) and/or adds back in some good minerals