Here's why:
* Official language: Mandarin is the official language of China.
* Standard dialect: It is the standard dialect used in education, media, and government.
* Widespread use: It is spoken by a vast majority of the population, especially in urban areas and major cities.
While there are other Chinese languages and dialects, Mandarin's dominance is undeniable.
However, it's important to note that:
* Regional variations: There are regional differences within Mandarin, with varying accents and pronunciations.
* Minority languages: China has over 50 recognized minority languages, spoken by significant populations in certain regions.
Therefore, while Mandarin is the primary language in China, it's not the only one spoken.