Many so-called developed countries make the choice for us. We drink fluoride in our tap water whether we like it or not. The scientific evidence of any benefit is sketchy at best, junk science at worst. Also, there are possible long term negative effects due to drinking fluoride every day, all our lives. Read more:
And a slightly more media friendly article:
If you think that buying bottled water will save solve the problem, think again. Many companies around the world have been called out for merely rebranding or for selling water that is less safe than tap water.
So what can we do? Big Brother and more recently Big Sister might have been putting our health at risk based on scientific claims that even a high school student should be able to recognize as invalid.