Indie subculture is a group of people who like certain things and say they are independent or individual. It's like when you want to wear a certain outfit because you think it's cool, even if your friends don't like it. It's when you like a type of music that not a lot of other people like. It's when you like to read books that aren't really popular.
Being part of the indie subculture means that you want to be different from other people. You don't want to do the same things everyone else is doing. You want to be unique and show your own personality. It's like when you draw a picture that no one else has drawn.
People who are part of the indie subculture usually like things that are not very mainstream. They like things that not everyone knows about. They like to support small businesses and artists. They might listen to bands that are not played on the radio or read zines instead of magazines.
Being part of the indie subculture is all about expressing yourself and being true to who you are. Even if not everyone likes the same things you do, it's okay because you're being yourself.