It still doesn't answer the question: if women complain so much about a lack of pockets [0], why don't they buy clothes with pockets? This article by HSW [1] suggests it's a "male dominated fashion industry." That doesn't sound right to me, being a free market. I suspect it's just that women don't actually buy pants with big pockets because they don't like the way they look.
[0] https://99percentinvisible.org/episode/pockets-articles-of-i... [1] https://lifestyle.howstuffworks.com/style/fashion/trends-loo...