It is that dreaded time of year for stepmothers everywhere -- Mother's Day. It is reasonable that children spend Mother's Day with their mother. Meanwhile, stepmothers are left to justify why they do not care about Mother's Day.
You love your Mom... and you find her alternatively infuriating and embarrassing, irreplaceable and overly dramatic, irksome and endearing. As far as I know, Hallmark hasn't yet created a line of cards expressing familial disharmony.
There are few guidelines for stepmothers and stepfathers about how to understand child development or to parent effectively, instantly. They jump into middle of a kid's development and try to make sense of it. Usually with little support.
What message does the word "stepmother" convey more clearly than "You're NOT a mother"? And why does a father's new wife need to be contextualized in relation to the mother at all? It declares a winner... as if society doesn't already halo moms over non-moms enough.