Bogen, can you please cite your source in 21,7? Sorry, but Sh”O mentions yeshainim bkiruv basar as a problem for a gedolah, but not one word about the issue at hand.
I never said the Sh”O is not applicable. The Sh”O only said it was recommended that women not go outside, but there is no halacha, only a recommendation, just as he recommeds one use bathroom in morning before going away. If there was an issur, 99% of all chareidi women would be in violation of a halacha, which is not possible, as pok chazi mai ama dvar.