I do agree that replacing all gender-designated bathrooms with unisex ones can potentially save space and resources. I cannot agree that replacing all gender-designated bathrooms with unisex ones would reduce sexual escapades, and in extension, rape. The fact that I am pointing out, is that a place where co-eds can occupy the same space, without surveillance, is going to increase the likelihood of those things. Seems like you are saying something like "we don't know what happens when we dip Jacob into acid because he have never dipped Jacob into acid."