> WOW, that’s just a taboo. This is an irrational cultural tradition.

I did not find myself sr@h, so I do not support anyone, but the taboo is written with the same blood as the security technique, just there the logic is lost and forgotten, unlike.
A pig is not eaten because of the fact that it was in that region (a twisted resemblance of physiology!) Swimming pool and carrier of fatal infection.
People are not eaten because of prion infections (except for isolated islands that are not affected).
Who is hit is not eut because the nose from syphilis fades. In addition, Sodom is also a pointless sex, so before the invention of the adage was a game with fire for nothing. Japan passed through, but they and their sexual habits were formed, keep me three.
Sisters are not eut because wretches are born.
Many things that are now technically possible continue to cause instinctive disgust in us, because evolution did not sleep and kill it in us.