"The Stance" is not only silly and useless for protection from infection, it is also dangerous.
About 20 years ago, I was on a trans-Atlantic flight, seated next to an elderly woman and her 30ish son (who addressed his mother as "Mama"). "Mama", who was clearly disabled, very proudly told me just HOW she had become disabled. With a tone of voice and facial expressions that conveyed how very important it was to her that I know she wasn't the kind of woman who would ever allow her posterior to come into contact with public toilet seat, she explained to me in great detail how she had been straining to maintain "The Stance", when the strain had caused her to have a stroke.
As far as I'm concerned, she had it coming. I am sick to death of the wet smelly toilet seats left behind by these silly women and their "Stance".
OTOH; sometimes those messy seats are done by women who would rather sit; but are in a hurry. . .