Here is an article that is confusing.

The title is:
Bottled water blamed for rush of cavities
Missing out on fluoride

One of the paragraphs is:
Problems are particularly pronounced among certain pockets of low-income children, with Montreal and Winnipeg, for instance, facing near-crisis levels of young people who need so much work they must be put under general anesthetic.

So, low-income people have enough money to purchase and only consume bottled water? I don't think so. I think they are looking for a reason to blame business, instead of parents.