Why have Canadian dads pulled ahead of American fathers in parenting?

Surveys from the mid 1980s showed that Canadian men spent 38% of the time that Canadian women spent on child care, and American men spent 35% of the time that American women spent on child care. Canadian dads spend significantly more time taking care of their children than their American counterparts. For example, Canadian fathers spend an average of 14 hours on child care each week, while American fathers average about 8 hours a week.