I often find that people with children, when they hear women who embrace their life without children (either by choice, or because we had no choice), find it necessary to comment that they couldn’t imagine life without little Jack and Jill (or whoever).
Of course, they can’t (or won't) imagine their life as it is now without their children. To do so would be to imagine them gone, to feel their absence, their loss, and to imagine and feel the grief of this loss. Of course they can’t do that. And none of us are ever suggesting they should try. Maybe I should say that in future. Because it might be nice if they tried to imagine what their lives would have been like if they had never had children. Then, they might start to understand.