This is some important work Susan Goffe has done about accessing government services or even just buildings while wearing clothes deemed inappropriate. It may seem trivial. But it was not trivial to me when I was nearly denied entry to the hospital with my days-old daughter when she was critically ill. I was wearing a nursing tank top and the guards did not want to let me in. Luckily I had a shirt on hand but I hate to think what would have happened had I not. There is no law or written convention for most departments. It is arbitrary and discriminatory.