by Thomas Rodham Wells
Parenthood is coming under increasing criticism as a selfish lifestyle choice. Parents' private choices to procreate impose expensive obligations on the rest of us to ensure those children have a decent quality of life and come out as successful adults and citizens, and that means massive tax-subsidies for their health, education, and so forth. We also pay to support parents' self-conception of parenthood, such as by providing lengthy paid paternal leave to allow them to ‘bond' with their children.
In addition there are environmental costs relating to the consumption of the children themselves. The choice to become a parent massively increases one's environmental footprint because it adds consumers who otherwise wouldn't have existed, and who may then go on to have children of their own. The environmental impact of a population is a function of population size multiplied by consumption per capita. Therefore, adding consumers must either lead to a greater environmental impact, or else to a politically directed reduction in per capita consumption to avoid that impact. With regard to carbon emissions, for example, it has been estimated that an American woman who has a child increases the carbon emissions she would have been responsible for by a multiple of 5.7 (source). If lots of people have children, the planet will be in even greater danger of cooking, unless all of us make very severe cuts to our consumption practices to keep humanity within the bounds of sustainability.
One might argue that children don't only impose costs on the rest of us. For example, because they may be expected to become productive workers as well as consumers, they will repay their ‘debt' to us by supporting the economic sustainability of our pension system (and thus allow us to continue to afford our habits of affluent consumption). But even if that were true to some extent, it does not affect the core criticism of the selfishness of parenthood, which is that parents do not stop to consider how their procreative decisions may affect others, including other would be parents. Since parents aren't motivated to have children by their commitment to supporting the social welfare system or otherwise contribute to society, they can claim no credit if that is how things happen to work out.