China approves 'ethnic unity' law requiring minorities to learn Mandarin
www.bbc.com
The law states that children should be taught Mandarin before kindergarten, until the end of high school.

The US is trying hard to follow this model, somehow thinking that the opposite of a Chinese monoculture is a White monoculture. Both are aiming for this because they are afraid of change - while simultaneously investing hard in the things that force change the hardest, ie, AI.