Though I will agree with fluoridated toothpaste. I would rather the govt gives out fluoride toothpaste to people, then force everyone to drink it, which research is still ongoing. Or offer discounted fluoride toothpaste / mouthwash.
From my understanding, fluoride works best when put directly on teeth (e.g. toothpaste / mouthwash), and doesn't work so well if you drink it.
Fluoride Exposure and Children’s IQ Scores A Systematic Review and Meta-Analysis [0]
[0] https://jamanetwork.com/journals/jamapediatrics/fullarticle/...
Even a tiny negative impact on IQ is a dumb thing to accept in service to some nonsense rationale for your teeth. Accepting this tradeoff is an IQ test itself. I'm with Europe on this one.
From my understanding, fluoride in water was more a thing done for poorer communities (or people with bad oral heath routines, aka not brushing your teeth), and the cheapest, most effective way to help these people is to put it in everyones water.
But from personal standpoint, the best way to look after your teeth is to brush with fluoride toothpaste, twice a day (ideally w/ electric brush), and floss once a day.
Fluoride mouthwash is also a good idea (but look up what a good mouthwash is, you don't want one with alcohol in it). Though using mouthwash isn't as important as brushing/flossing.
Personally, I'd rather not have fluoride in water until we have more conclusive reliable research on it. But having said that, I understand why it's often put in in a cost–benefit view point.
Why would you preference a dubious need for your teeth easily mitigated by just taking care of them, over potential harm to your kids (plus societies kids) brains?
I believe that's a dumb tradeoff.
Because I reject your premise