But after five years of research, I have come to believe that there is something else at play too: a form of social contagion. In a world that appears to treat parents with hostility, where the advantages of raising children are obscured, remaining childless is easier if the same decision is made by everyone around you. As a phenomenon, it can become self-perpetuating.<\/p>\n\n\n\n
This extra factor \u2014 network effects \u2014 can explain the remarkable similarities between falling birth rates across very different places and cultures. It also offers humans a way to reverse the decline by making having children attractive again.<\/p>\n\n\n\n
Falling birth rates are often presented as a simple matter of choice. But in research of 10 low-fertility countries by Ester Lazzari and Eva Beaujouan, up to half of men and women end their reproductive years wishing they had more children. While passing peak human will ease the burden on natural resources, the drop in global population is projected to be rapid, ushering in legions of elderly who will strain welfare states and economies. In China, where a one-child policy introduced in 1980 distorted family planning for 35 years, there is now the \u201c4-2-1 problem\u201d, with an only child supporting two parents and four grandparents.<\/p>\n\n\n\n
Read it all<\/a>.<\/p> Why people don\u2019t want to have children any more \u2014 Camilla Cavendish https:\/\/t.co\/HShecevPc1<\/p>— FT Opinion (@ftopinion) October 8, 2026<\/a><\/blockquote>\n