Families of antiquity were numerous and then, it was common for parents with six or more children. Over time, economic progress and modernization, families were shrinking more and more and then went to increased integrated only for dad, mom and son households.
But something is happening in the past decades and has worsened in the case of couples who have decided not to procreate. The so-called ‘dinks’ (‘double income, no kids’ which translates into: double income, no kids) are pairs of socio-economic level medium to high; they have decided as a life not have children and invest their income in themselves.
Why this decision should be? Their motivations are varied but all are ideological, unlike other cases such as homosexual couples who, unless they resort to adoption or conception methods such as artificial insemination, have no own children for biological reasons.
These couples have good income to support a family with children, often base their decision on ideological movements as self-extinction, environmentalism and global overpopulation. In these cases, their concerns for the environment and scarce natural resources left on the planet that does not motivate them to bring more children into the world.
But there is also the other side, those couples who feel comfortable with the lifestyle they lead and do not want to give up that way of life to have a child. The adviser at the Center for Entrepreneurship Management, National Autonomous University of Mexico, Sergio Carranza told CNN that the ‘dinks’ spend much of their salary to luxuries that surely could not afford if they had children.
Between the interests of these couples are from cinema, theater, concerts, reading journals of his profession, look for the most innovative technology, attend expensive restaurants, wear designer clothes and accessories to fine and expensive brands paid vacation abroad or invest in their professional development, among other things.
But this is a phenomenon that is occurring worldwide and only in 2012 the ‘dinks’ accounted for 4.5 percent of the population in Brazil, 17.6 percent in the United Kingdom and, of course, United States not far behind with 14 percent. And it seems to continue to grow.
Strong social changes such as increased education among women and a decrease in the birth rate are some of the factors leading this growth.
It is for this reason that the way of life of these couples may be criticized by the more conservative sectors of society who claim that it is a selfish attitude that consumerism and the value of material things is privileged before the family and the values of this institution.
However, there is research that favor people who abstain by choice to have children. The London School of Economics conducted a study which shows that greater female intelligence, lower maternal desire. Speaking in numbers, the maternal desire decreases for every 25 percent more IQ.
This indicates that the decision of women to have children can be a well-reasoned and responsible determination that moves away from the banal and utilitarian, as many of these women have a very demanding career that would enable them to provide appropriate care a son.
However, this decision could have serious long-term implications on the population because if they are mothers with the highest IQ who choose not to reproduce, we are taking a step backwards in the evolution psychologist Satoshi Kanazawa depending on who the study.
According to the expert, it would be unnatural that more intelligent mothers did not reproduce because they would be avoiding their biological destiny, then, would be resulting in a less intelligent population.
But having children or not is a decision after all and view it in the opposite way would be denying the humanity of women who have determined not procreate.