That is basically what the articles is saying, although not in your terms. "After paternity leave was instituted, surveys of Spanish men ages 21 to 40 showed t

That is basically what the articles is saying, although not in your terms. "After paternity leave was instituted, surveys of Spanish men ages 21 to 40 showed they desired fewer children than before. Farré and González think that spending more time with their children—or the prospect of having to do so—may have made men more acutely aware of the effort and costs associated with childrearing, and, as the researchers put it, “shifted their preferences from child quantity to quality.”" And also that that the data really cannot be used to demonstrate their point, so, whatever, another research that was able to generate a media article.