This poster is in Europe - like most of the rest of the world, they don't have to worry about fluoride removal from water because it's not there in the first place.

Most toothpastes make my teeth sensitive. Interestingly, one of the few that doesn't is fluoride-free. There's been no negative difference in the health of my teeth over the last several years of using that. My experience - fluoride overhyped, especially if you have an electric toothbrush.