Being of a somewhat feminist leaning, I was a bit taken aback when one of my 11 year old Primary students brought out an axiom he learned from his mother – “Men get the Priesthood and women get the babies”. I tried to mitigate this a bit, since he was telling it to one of his female classmates, but to me this is a lot more complex than a simple axiom.
Motherhood does not equal Priesthood. Yes, there are responsibilities that each entail that cannot (at this time) be done by the other, but to me, there is so much more that makes up men and women beyond these two simple tropes that the axiom is too much of an oversimplification, and potentially damaging. It may be an easy simplification for children, but certainly more teaching would need to be done to expand both things that are bare facets of what makes up men and women.
Not all women can be mothers, at least not in the strict sense of childbearing and breastfeeding. Similarly, not all men have the Priesthood. Yes, all worthy males are given the Priesthood in the Church, but the subset of men with Priesthood in the world is much, much smaller than the subset of women who are mothers. Neither is the “ultimate calling” of men and women, nor are they adequate definitions of what make men, men and women, women.
Trying to compare the two is not even comparing apples and oranges, as there have been times (and likely will be again) when there have been roles now considered only of the Priesthood that have been also done by women, such as prophesying, healing the sick, etc., and it is impossible (without extensive surgery and technology) for men to bear children. It’s like comparing apples and ostriches.