Women have been advised to observe a curfew. But I have never known a time when women were expected to obey a curfew. I have never felt that, and I am not aware of knowing any woman who did.
I am not sure whether it is because I am unobservant, but I was once kerb crawled, but I can recall very few other times when I have been groped, cat called, or in any other way subject to sexual harrasment. I have not led a sheltered life. I lived in London for 7 years after I graduated and walked wherever I liked at night without problem. including the time I lived in the Edgware Road, near a red light district and on the edge of Camden. I worked in London even longer and I spent most of my working life in a predominantly male engineering environment where I was the only woman not a clerical worker or secretary. Perhaps I frightened them.