Traditionally in many cultures, single adult men live alone but single adult women live with their families. Nowadays, women are moving out and living on their own as adults.
I wonder if there’s also a change in the number of women seeking apartments entirely on their own instead of living with roommates - in the first half of the 20th C in the west, single adult women who moved out of their parents’ homes would often take rooms in boarding houses run by matrons, rather than getting their own apartments. My understanding is that this would be considered both safer and more proper.
It may also have to do with what neighborhoods each gender chooses. Women tend to have a stronger preference for “safer” neighborhoods; men on average are both more risk tolerant and more confident in their ability to defend themselves against assaults. So women may choose neighborhoods that have already gentrified or begun to, while men may be more comfortable pursuing the lower rents in neighborhoods that haven’t yet.