evil_elf, while it's true that the target audience is younger people, the reason why Masters are the largest is because most of the Masters are the people who have stuck around since Pokemon started: 1998. They started with the series and grew up with it, and now they're staying with it.
That, and Masters generally have more freedom in buying cards than little children do. Would you rather buy your packs yourself or have to convince your parents instead?
That, and Masters generally have more freedom in buying cards than little children do. Would you rather buy your packs yourself or have to convince your parents instead?