about domestic violence being more prevalent in couples who live together vs married couple could potentially be misplaced comparison, perhaps a selection bias and people especially girls would have weeded out bad and violent potential husbands and knowing they dont have the tendency of domestic violence before they get into marriage, hence explains the huge contrast, and perhaps those couples who experience/ exert domestic violence broke up and didn't end up marrying each other and therefore they dont turn up as part of married couple data, meaning the seriousness people place in marriage in whatever culture is supposed to be a filter of bad behaviours, but only works as long as the teaching about marriage and opposing of domestic violence are intertwined, meaning the girl is taught by her parents or friends to better identify what kind of man would constitute a violent husband and has the potential to commit domestic violence