Antinatalism or anti-natalism is the philosophical value judgment that procreation is unethical or unjustifiable. Antinatalists thus argue that humans should abstain from making children. Some antinatalists consider coming into existence to always be a serious harm. Their views are not necessarily limited only to humans but may encompass all sentient creatures, arguing that coming into existence is a serious harm for sentient beings in general.
There are various reasons why antinatalists believe human reproduction is problematic. The most common arguments for antinatalism include that life entails inevitable suffering, death is inevitable, and humans are born without their consent (that is to say, they cannot choose whether or not they come into existence). Additionally, although some people may turn out to be happy, this is not guaranteed, so to procreate is to gamble with another person's suffering. There is also an axiological asymmetry between good and bad things in life, such that coming into existence is always a harm, which is known as Benatar's asymmetry argument.