Your only obligation in any lifetime is to be true to yourself. Being true to anyone else or anything else is not only impossible, but the mark of a fake messiah.
The best defense against these people is to educate parents and children of the dangers that come along with the Internet and by limiting access to certain sites during the school day.
Sometimes on stage I prefer to feel more glamorous, so I'll go all out when it's a stage outfit like sparkly, colorful, and have a certain shape. If someone is watching it from far away they can maybe remember the shape or the color.