Because women have been, & always will be, deemed the 'weaker' sex. The fact it's a woman who bears a child is neither here nor there, in this type of stupid thinking.
It's obvious men work, but it's a 'rarity'(?) for a woman to do so, hence the classification. The whole thing stinks to the nth degree.
And also, why must a woman's age be mentioned in an article? What's that got to do with the 'price of eggs'? NOTHING, absolutely nothing, & yet it persist! Gives me the sterks!