A client with fertility issues or who lost a baby or who strongly doesnt want children but feels judged for that also might or might not have feelings about this, especially if the T selectively discloses often about this. I think some Ts find it a safe chitchat subject or to offer "for examples" . Clients who were abused by parents also could find it uncomfortable to picture T as a parent.

I could also see it making a nice bridge with other kinds of clients.

Judgement call by T.