I think this will self correct within a generation, on some more or less optimal value.<p>Because I think this is not primarily about grandparents, it is about female fertility on one hand and fear of &quot;can I provide&quot;&#x2F;&quot;I don&#x27;t want such obligation yet&quot;.<p>I.e: my aunt had her first born when she was over 40, and knows this will be her last one.<p>I know several of my older peers that had their fistborn roughly at 30, and they attempted the second one already within two years.<p>I had my first daughter at 26. (Similar to my parents and parents of my wife first-borns were a kind of a happy accident :)<p>And I can understand these trade offs. Heck, sometimes even I have an argument with my wife how much easier would some things have been if we have been slightly more careful for one or two more years :-)<p>But I understand the sentiment about grand-parents :)