In agricultural and patriarchal societies, where bride kidnapping is most common, children work for their family. A woman leaves her birth family, geographically and economically, when she marries, becoming instead a member of the groom's family. (See patrilocality for an anthropological explanation.) Due to this loss of labour, the women's families do not want their daughters to marry young, and demand economic compensation (the aforementioned bride price) when they do leave them. This conflicts with the interests of men, who want to marry early, as marriage means an increase in social status, and the interests of the groom's family, who will gain another pair of hands for the family farm, business or home. Depending on the legal system under which she lives, the consent of the woman may not be a factor in judging the validity of the marriage.