The pocket is political
Women’s pockets were private spaces they carried into the public with increasing freedom, and during a revolutionary time, this freedom was very, very frightening. The less women could carry, the less freedom they had. Take away pockets happily hidden under garments, and you limit women’s ability to navigate public spaces, to carry seditious (or merely amorous) writing, or to travel unaccompanied.
Normally this is the sort of thing I would just post a link to on the faceplace or the twit, but the person I am almost certain would find this interesting (if they haven't already seen it) has withdrawn from the hurly-gurly of Zuckerealm, if only temporarily.
And so, I commend to your attention the surprising history of pockets and why — if you're a woman — your clothes probably don't have any. None usuful, at least.