The Faith-Fertility Link: What Thailand Can Learn from America’s Declining Birth Rates
A new wave of demographic research shows a clear connection between rising secularism in the United States and falling birth rates. For Thai readers, the findings offer a crucial caution: cultural and social supports for families matter, and rapid changes in values can accelerate population decline if policy does not respond.
Across several large studies, highly religious Americans tend to have larger families than their secular peers. The share of Americans who identify as religiously unaffiliated has grown steadily, reaching about 29% in recent years. Importantly, women who attend religious services weekly tend to have roughly twice as many children as those who never attend. These patterns help explain much of the drop in national fertility observed since 2012, beyond economic factors alone.