Yup I agree with the other ladies ~ yes it was rude of her to judge you however if we want to be seen as professional how we dress is part of that as 'dress code' is part of what people naturally use to judge professionalism ... I would not answer my door in my housecoat unless it was PAJAMA DAY and everyone was in their PJ's ... I am the opposite of most people and am always HOT so I work all day long in a sleeveless tank top and put on a 'sweater' to answer the door this time of year because the blast of air is cold for sure and I do not want parents looking at me like I have three heads standing there in just a tank top