"When officials forced an informal school run by monks near here to stop offering language classes for laypeople, Tashi Wangchuk looked for a place where his two teenage nieces could continue studying Tibetan. To his surprise, he could not find one, even though nearly everyone living in this market town on the Tibetan plateau here is Tibetan. Officials had also ordered other monasteries and a private school in the area not to teach the language to laypeople. And public schools had dropped true bilingual education in Chinese and Tibetan, teaching Tibetan only in a single class, like a foreign language, if they taught it at all."
Yes, Tibatan will be very upset.
I think we should preserve every culture, not only chinese culture.
Tibetan is their mother tongue. As every culture has its own special characteristic.
"And public schools had dropped true bilingual education in Chinese and Tibetan" this quote shows Tibetan cannot learn both language.
The officials cannot forced them to learn chinese, and should give Tibetan a bilingual education just like Singapore.
This will result that Tibatan's children do not know their mother tongue and lost that culture gradually.
Although this can assimilate Tibetan to become Chinese in future but I think the offcials can give TIbetan some choices to choose.