Acceptable dress code for work?

This topic is debated very heavily around the world. Corporate America feels that we should model most of the rest of the world (Asia, Europe, India, etc) and wear suits to work. This is unnecessary.

There are a few phrases I hear when people discuss business attire. "Look good, feel good, do good." and "Dress for the job you want, not the job you have". Each of those can be taken differently by people but I believe that they do mean that business attire (not jeans) should be worn in the workplace. I do however believe that 99% of the world could probably get away with wearing business casual (khakis and a polo). This is what I wear 80% of the time. We have jeans Friday which also has some requirements. No frays, no holes, no stains, etc.

I think that all companies should enforce basic dress code rules i.e. no offensive words/phrases, no excessively revealing clothes, clothes should be clean and not have ripped holes in them. I think it would set a bad tone in the workplace if workers showed up in completely inappropriate dress. However not every workplace need demand that you wear a full suit, that all depends on what you do.

I work in a bank and wear jeans, t-shirts and sneakers. IMO there is no need to wear business suite if you don't communicate with clients. Casual wear is comfortable and it doesn't influence my work, why should I sacrifice comfort?

I think a persons work is much more important than how they dress. That said, when a person does make an effort ot dress nicely for work, I have found that they behave much more professionally.
Many companies go overboard in their dress code and a more casual look/uniform can work in many workplaces.

I was shocked once whn a young lad was asked not to come back to work one day when he arrived after dying his hair with blond tips. It was not over the top, and looked nice and neat - I quit that week as I did not want to keep working in a place that treated their staff so disrespectfully.