I've always liked pockets on my clothing, but I got constantly discouraged by people telling me pockets were for men's garments mainly.
I feel angry at clothing designers, as for decades, pockets have practically been excluded from women's fashion.
The famous Christian Dior made the following claim (according to the Media): " Men have pockets to keep things in, women for decoration". His words placed functionality versus decoration.
Pockets are in fact practical receptacles for holding small things such as: keys, wallet, lipstick, tiny tools, and even a mobile phone. At the same time they could also well be made to look as adding decor and fun to the outfit. No big contradiction here between practical and decorative.
Anyway, pockets - usually made of fabric or leather - come in different sizes and shapes. They are either sewn into the garment or on it.
I like them on most of my clothes; pants, shirts, jackets, skirts, coats, dresses. At present, I'm creating and attaching pockets to some of my pocketless clothes.
I'm glad to mention that I possess a pair or two of Cargo pants (with big utility pockets), and a multi-pocket vest. Both items have been of great use to me, especially at travel time.
However, I'm not for overloading regular clothes with pockets as it might feel uncomfortable and even damage the fabric.
Warning: please empty pockets before doing the laundry!
I'll leave you with a short and quite true 'pocket' quote:
"Deep pockets and empty hearts rule the world."