Which of these words is used to describe the voluntary choice not to have children?

Voluntary childlessness, also called being childfree, describes the voluntary choice not to have children.

In most societies and for most of human history, choosing not to have children was both difficult and undesirable. The availability of reliable contraception along with support provided in old age by one's government rather than one's family has made childlessness an option for some people, though they may be looked down upon in certain communities.

Supporters of this lifestyle, such as Corinne Maier, French author of "No Kids: 40 Reasons For Not Having Children", cite various reasons for their view, for instance:

-Simply not wanting to have children.

-Other possibilities in life opening up due to the lack of children.

-Lack of a suitable partner or difficulty getting married.

-The health of one's partner does not allow for children.

-Not feeling the 'biological clock' ticking and having no maternal or paternal instincts or drives.

-Being busy with work.

-Belief that one can better contribute to the welfare of existing people (including children) than to produce even more.

-Countering human overpopulation and its effects by not reproducing.

Psychologist Ellen Walker argued that the childfree lifestyle had become a trend in 2014. The Internet has enabled people who pursue this lifestyle to connect, thereby making it more visible.