I totally agree with all you have said, but we have to do the best with what is available to us now, and avoid the processed foods. Kafir is not to be confused with Yogurt. Kafir contains much larger number of probiotics, The probiotics available in stores (Nestle) is expensive ~$1.20 ? ,for a tiny 50-100 ml bottle and no comparison to Kafir.
I could not find any ready made Kafir in any supermarkets or any store in Oz., maybe in the US.
GT