Once the rules were as clear: the man worked for the family and the assured security of property. The woman was a housewife, raised the children. Roles were clear and understandable for both parties. Usually, a man lay on the shoulders of decision making on family life. That situation has changed: the culture no longer tells us what standards of living with a partner are good and the evil. Now everything is in the hands of partners, and the one on which system to choose, depends only on their relationship of power is inherent to some extent in every social interaction. Some philosophers argue, even if the relationships are limited solely to its ownership or servitude.