With regard to holy texts, there are thousands of interpretations of the Quran, and people spend their entire lives studying it for that reason. Without meaning to sound rude, how does your brief interaction with the Quran really prove anything?
As to the women walking behind men, there is...
Niqab as a face covering seem to get all the attention, but it seems that chadari is almost seemingly forgotten about unless someone's talking about Afghanistan. I'm wondering, and I'll assume that there's face covering supporters here, what my fellow RFers make of the Afghan burqa (chadari)...