I think it's what you learned. I knew a lady who returned from her first trip to Europe totally outraged about the seatless toilets. She could not sit on her haunches and demanded that i show her (i can do it) how to.

I have always felt ripped off because I can't hold baskets of eggs/jugs of water/ bundles of firewood on my head, especially after i read the article talking about how efficient it is in terms of energy output. You have to learn THAT as a child. I have seen older women doing it in Italy... so my great grandmothers could probably do it.