I put a pocket in pretty much everything. How fun is it to have a pocket?
From my own person experience, when I wear something without a pocket, I’m always looking to put my hand someplace. I miss having a pocket.
When it works in the design, two pockets often eliminates the need for a purse. But you’ve still got a place to carry a lipstick, a credit card, a cell phone. It also gives you something to do with your hands.
It’s so utilitarian and practical, I don’t why they don’t make it a law that every jacket has two pockets!
If you’re curious about the pocket’s history, the Victoria & Albert Museum has great information.