blinky, that sounds like an excuse. No frum person goes OTD because of a slit. He may have decided not to fight his desire anymore, but that’s it.
Remember, women are not required to wear burqas because a man may have a taiva. We are required to dressed tzniusdigly according to our own mesorah and halacha, not according to the whim of every man.
My high school actually had a class about marriage in 12th grade and discussed things in fair detail. I laughed because they spend 9-11th grade telling you to stay away from boys and then 12th grade telling you to marry them.