 Although the reasons for not having children vary sharply, the main one given by childless adults is simply that they don't want any. Other reasons given include medical, had 19%, and financial at 17%. About 15% cite the lack of a partner, 10% said it was the age of their partner, and 9% blame the state of the world. Roughly 1 in 20 cite environmental factors, including climate change as the reasons behind their desire to not have a child, which only just supports what I've said before, that no one actually cares about climate change.