A new study shows that boys with sisters tend to be less involved with household chores in adulthood and more expecting of women to complete tasks as their sisters did.
Males with sisters are shown to have "traditional expectations" about gender roles, according to The Atlantic. For example, the data showed that men with sisters were 17% more likely to say that their spouse did the housework.
Studies gave evidence that the issue came down to parenting style: parents just had different expectations for boys and girls. One of the biggest chore disparities? Doing the dishes. Men with sisters are also more prone to becoming Republicans and are more likely to expect women to be stay at home moms.
The study was published in the Journal of Politics. You can read more here.