Here's why:
* No Global Authority: There is no global government or organization that sets official languages for the world.
* National Languages: Most countries have their own official languages, which are determined by their individual governments and histories.
* Multiple Official Languages: Some countries have multiple official languages, reflecting their diverse populations.
* English's Influence: While English is widely spoken and used internationally, this is due to a variety of factors, including:
* British Colonialism: The historical spread of the British Empire led to English being established in many former colonies.
* Technological Advancement: English is the dominant language of science, technology, and the internet, making it essential for global communication and collaboration.
* Global Trade: English is widely used in international business and finance.
* Popular Culture: English-language films, music, and television programs are consumed globally.
In Summary: English is an important global language with significant influence, but it is not the official language of the world. Each country has its own official language(s) based on its history and context.