Cantons are administrative divisions within a country, often used to organize governance and local administration. They can vary in size, population, and governmental structure. For example, in Switzerland, the country is divided into 26 cantons, each with its own constitution and government, allowing for a degree of autonomy. In addition to Switzerland, other countries like France and China also have regions referred to as cantons. These divisions help manage local affairs, such as education, transportation, and public services, making it easier for governments to address the needs of their populations effectively.