A glimmering of thought

I'm not keen on them, but even less so at work. I understand my own bias, though. My group alone of the entire facility (unless you want to count physical security, who have uniforms) have a dress code. Flip-flops are not on it. Not that I want to wear them, I'd rather no one see my feet, thanks! But it rather annoys me that, here is a list of things that are considered "unprofessional", yet pretty much anyone else who wants to wear something on it is allowed to do so. I think it's coloured my perception of how professional their attire is, whether that's fair or not.