Loved your last paragraph....SPOT ON!
Well said. I know about Baloch culture a majority of them do check the bed sheets. In some families it is even tradition to show the blood stained sheets to the guests who attended the wedding. I know that for a fact because I have many Baloch friends. I don not know about Pathan culture but it is not entirely different than the Baloch culture. They do not care what science says about bleeding on the wedding night. It is their tradition and custom and any kind of enlightenment and modernism can not change it.
When it comes to Pakistani men , they can tolerate if they marry a gory but when it comes to marrying a Pakistani girl they want her to be 100 percent virgin. I know for sure because I am myself a Pakistani man , I was born and raised in Pakistan and still I am in contact and in touch with other Pakistani males. If Pakistani males cannot accept the fact that moon sighting can be accurately predicted with the help of science , you expect them to accept the fact that a Pakistani girl was so modern and open minded that she had sex before marriage with her own free will and she is so open minded that she wants to come clean about it before marriage. I do not think you will find one Pakistani male so open minded and tolerant. They will not marry even a rape victim if they come to know of it. In a society and culture where even a rape victim or a child born out of wedlock are untouchables you expect a girl to come clean and be accepted , not a chance.