Importance Of Chinese...

Ok,I dare to say even until now I don't see the importance of Chinese in this society and the world.But I can consider myself fortunate that I can speak and write Chinese.Was talking on the phone with Candy and we came to this topic.Most of her classmate can't speak Chinese and worst,can't understand to Chinese.Candy quote an example.Teacher was telling the class what is to do for homework in Chinese and the next day most of the students didn't do.Why for a simple reason,the student don't know that there is this homework to do althought the teacher told the whole class in front of everyone-they don't understand Chinese.So,they blamed it on those students who understands because they know but did not tell them.What is this?
Another thing is that,they can't even pronounce "lao shi" correctly.
Correct (0) : lao3 shi1
Wrong(X) : lao2 shi3

This kind of things happen n Methodists Girl's School and is very very commom.Almost every class faces this problem.Wondering if SNG got such cases or even worse.I don't think I will get a wife or a girlfriend from MGS if that is the case.