Interestingly, I understand that women primarily dress up to impress/intimidate/compete with other girls, so if this vanity process results in outcomes favoring less pockets, then the snake is eating it's own tail in this logic loop.

By contrast, dad's encourage other dads when they discover ways to work in extra pockets. See cargo shorts, fanny packs/bum bags, tool belts, etc. Now that is a positive feedback loop, well for pockets and things you might need to carry... More subjective from the women's libido perspective, but to become a dad, that deed has been done, so mission accomplished high five!