Tibetan and Han belong to the same language system, Sino Tibetan language family, the two languages are very similar, and Tibetans now usually communicate in Chinese. In fact, because of decades of compulsory education, almost all Chinese people of all nationalities apply Putonghua and Chinese characters.
Secondly, I don't think western countries respect language and countries, they only respect their own interests. For example, Taiwan, which uses Chinese. And India, which speaks dozens of languages.
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