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Like the social and fashion trends of eras long gone, emo is not simply about the way you dress - it is a lifestyle. It culminates in your clothing, shoes, hairstyle, attitude and - most importantly - musical selection. This section describes the emo lifestyle and attitudes.
People do tend to adopt at least the attitudes of the music they listen to most even if they don't admit it. This is because a lot of people are not able to separate themselves from the ideas that are expressed. Music is different from other art-forms in that it penetrates the soul in a way something visual cannot.
People seem to like to group together for some reason, its in our nature, and "emo" is just another group or sub-culture. People "join" it because they might agree with some, most or all of what the group is generally about.
Being "Emo" is just another way that people are trying to express themselves, really the same as other street styles, just with a different soundtrack. In the end, each of the people who have chosen to follow the scene is their own person- they are just part of a scene that is tipped as being defiant and unacceptable- something most young people are drawn to.