You speak way off base. Many, possibly most people in their early 40s can have kids and still keep up with them well into their 50s. Not only is it easier than

You speak way off base. Many, possibly most people in their early 40s can have kids and still keep up with them well into their 50s. Not only is it easier than ever to pull this off for many modern reasons of health and lifestyle decisions, it's not even exceptionally hard unless you're unlucky with your health or do something to really fuck it up. Even decades ago, many many men at least were commonly fathering children in their 40s and even 50s, and rearing them. You write your comment about the maximum safe age for having children as if most people (at least in the advanced countries and moderately reasonable income brackets) were living the lives of 19th century industrial workers.