The question is: does it make sense to buy toothpaste with fluoride then or can I buy one without? Just because my kids don't like the peppermint ones and other flavours are most of the times without fluoride

But what about our precious bodily fluids?

Now say something that bros can really understand, like "fluoride affects zinc and magnesium absorption". Just don't tell them how it interacts

The question to me is - do we even have to fluoridate water and is this really the best approach?

For example, most European countries do not commonly use fluoride in their water supply, and everyone's just fine! No extra cavities, no special health risks. People commonly drink tap water and do not care about potential for any adverse effects, because it's just that - clean water. And for any teeth-related issues, you already have your toothpaste providing more than enough fluorine.