Even a basic knowledge of mail anatomy will explain how uncomfortable it is for Men to sit with their legs together.
A more enlightening example of gender differences occurred at a session I was attending, I passed round a small piece of Elder wood stem that I had collected and seasoned. The guys showed great interest in the material hefting it and looking closely at the grain.
Then it got to one of the women at the session, she looked puzzled, and said, "what does it do?".

PP