Interesting point. In the Netherlands, many houses don't have curtains, you can see directly into the living room from the street. It stems from the old tradition of wives being accountable when their husbands were at sea. I learned from your comment (perceived) privacy is also cultural.

Privacy is skewed to the disadvantage of women in the Netherlands? Am I reading you correctly?

Used to be in the middle-ages, not anymore. It's a tradition from that era to not have curtains.