Uhm. That is some really twisted logic. Asian grandmothers squat so they have crooked backs when they get old. As compared to more reasonable theories like not enough calcium and osteoporosis - something which isn't limited to squatting Asian grandmothers. I am bald. I shit sitting on a toilet. Thus, sitting on a toilet makes you bald.
I think squatting is great for mobility, and useful to be able to do. I just don't think there is much carry-over for squatting for weight.