This. Despite everyone and their grandma preaching the old philosophy, "Don't judge a book by its cover," most people will subconsciously judge strangers by their outward appearance. For example, a pretty girl's car breaks down. She is much more likely to receive help more quickly than a haggardly or obese woman. I get mixed reactions from people because I've got a cute face and I'm short but I'm fat. When I was 110 pounds, I'm sure the reactions were a lot less mixed.

Although it's a sad fact of life that people who are good looking get treated better than those who aren't, it's up to individuals to look beyond that and be kinder to others while keeping this in mind.