> Jeans and t-shirt/hoodie are the official uniform/suit of programmers.
There's lots of different contexts that programmers work in. In some of them, that's true, in others its not. Plenty of places, khakis and sports/polo shirts is a lot more common than jeans and t-shirts. And in others, its suits.
I think it's kind of funny that SF is probably the place with a pile of programmers who are least enamored of suits, when it's the one place that always has weather in which a suit is comfortable.
There's lots of different contexts that programmers work in. In some of them, that's true, in others its not. Plenty of places, khakis and sports/polo shirts is a lot more common than jeans and t-shirts. And in others, its suits.