The point is that in Biblical times it was possible for a man to be established in a trade and capable of supporting a family within just a few years of puberty.
That is not true today in America. Most people would consider it irresponsible for Americans to marry as teenager. People today typically have an extra decade of hormone driven temptation to deal with before they feel prepared to begin a family. Asking them to remain chaste for a decade is very different from Biblical times.
All of which if granted for hypothetical argument’s sake doesn’t explain the shenanigans in the lead story.