The first author says "we" and "me" and "I" and talks about their own experience, including some consideration on what they may be missing.
The second author says mostly "you" and projects their own experience onto every childfree couple. That's pretty presumptuous and, as you noted, narcissistic.
The second author says mostly "you" and projects their own experience onto every childfree couple. That's pretty presumptuous and, as you noted, narcissistic.