Earlier quoted context omitted.
In addition to men preferring cooler temperatures in general (probably for metabolic reasons), men in offices are usually required to wear warmer clothing than women (though anecdotally I suspect that because of the AC, pantsuits are becoming more popular). In one office I worked at, the AC controls were not accessible, and because there was no dress code whatsoever, everyone complained about the temperatures being t…
"Looks professional" is all about what "successful people" wear. If everyone in the US who was successful took to wearing Moomoos... then we'd all be wearing moomoos and the schlubs would be wearing suits. Just look at the hoodie pre and post zuckerberg. If Mark had instead wore a tank-top and board shorts 50% of SF would be wearing that year round instead.
Hoodie and jeans is an okay uniform inside a business (though I would argue that if they're not well-kept, it lowers the standards of the people in the office), but in customer-facing roles I think it's inappropriate. It can be done well, but most hoodies and most pairs of jeans are an aesthetic disappointment, since they're built for casual warmth and gold panning respectively.
I would not trust a bank which faces its customers with hoodies, T-shirts, and jeans. The appropriate attire for a clerk usually involves a shirt (especially with a vest) or one/two tone blouse, and trousers or a skirt. Makes you look kempt, but dynamic. A unifying visual theme for staff also makes it simpler to identify them. If the clerks all have a consistent uniform, the custodial staff a different but thematically matched uniform, it makes it simpler to navigate a customer-facing office. I think Hooters does a good job of this, it is easy to locate and discern the staff from other guests, and contributes to the environment (a casual, consistent dining establishment which has attractive, well-trained, and helpful service staff).