You obviously have no experience with the devices in question, and your generalisations about other cultures are ignorant, at best.
Cleaning yourself with water, whether it be your hands or your butt, is not a "fetish" and I cannot comprehend why you would try to paint it as such. Why are you so scared of the idea that you'll go to the extreme of trying to dismiss it as sexual deviancy? Your argument says a lot more about you than it does about the topic at hand.
And for your information, used pantie vending machines in Japan is basically an urban myth. There may be some in fetishist sex shops, I'm not sure. I'm sure you can buy used panties in American fetish sex shops, too.
Cleaning yourself with water, whether it be your hands or your butt, is not a "fetish" and I cannot comprehend why you would try to paint it as such. Why are you so scared of the idea that you'll go to the extreme of trying to dismiss it as sexual deviancy? Your argument says a lot more about you than it does about the topic at hand.
And for your information, used pantie vending machines in Japan is basically an urban myth. There may be some in fetishist sex shops, I'm not sure. I'm sure you can buy used panties in American fetish sex shops, too.