People over thirty, lacking the recency of a college experience, have better luck online finding partners. Economist Sylvia Ann Hewlett in 2002 found that 55% of 35-year-old career women were childless, while 19% of male corporate executives were, and concluded that "the rule of thumb seems to be that the more successful the woman, the less likely it is she will find a husband or bear a child."
Historically, marriages in most societies were arranged by parents and older relatives with the goal not being love but legacy and "economic stability and political alliances", according to anthropologists. Accordingly, there was little need for a temporary trial period such as dating before a permanent community-recognized union was formed between a man and a woman. While pair-bonds of varying forms were recognized by most societies as acceptable social arrangements, marriage was reserved for heterosexual pairings and had a transactional nature, where wives were in many cases a form of property being exchanged between father and husband, and who would have to serve the function of reproduction. Communities exerted pressure on people to form pair-bonds in places such as Europe; in China, society "demanded people get married before having a sexual relationship" and many societies found that some formally recognized bond between a man and a woman was the best way of rearing and educating children as well as helping to avoid conflicts and misunderstandings regarding competition for mates.