The discussion is in no way comparable. If anything, you could say that we've all been actors, i.e we've al been kids, but even that seems a little stretched.

Anyway, this talk of "it's so hard to be a parent!" mostly comes from middle-class well-to-do people for whom it shouldn't be actually hard to be parents, or at least not as hard as it objectively is to much poorer people.

I suspect they're mostly doing it (the complaining, that is) as a social signifier, the same way that part of the same well-to-do middle class people used to complain until not that long ago that they're over-worked because of all of the emails.