Did you watch the video until finish ? There you go, you will find out that it is impractical to use Mandarin in Indonesia since every body speak Bahasa Indonesia. Even that lady refuse to learn Mandarin when her mother try to get her to learn Mandarin in language school. I think it describes all other Chinese Indonesian as well when they were still kids. They dont get the urge to learn Mandarin like Chinese Malaysian do. It is also because our society is more united and not divided like Malaysian.
Those Chinese also love Bahasa Indonesia just like being revealed by her since it is a simple and easy language and it is neutral as well that make us easy to speak other language like English and Arabic fluently. You can tell it on how easy we can understand her English.
Yup, Chinese school is banned in Indonesia. Every school must use Bahasa Indonesia on their teaching. Similar way there is no Javanese school, Minang School, Batak school, Sundanese school either here. But of course for international community there are Korean/Japanese/English school in here, particularly in Jakarta.
Chinese Indonesian is more nationalistic than other Chinese living in other SEA nations. Deal with it.
Regardless of that there is still one misinformation here. It is wrong to say that you can die if you use Chinese language (Mandarine/Cantonese/etc) during Soeharto regime. It is utterly nonsense. Here
@Brainsucker, our Chinese Indonesian friend who live under Soeharto regime can explain it to you.
Anyway stressing more on the information given by her that Indonesian is a neutral language and because of that many Indonesian ethnics including Chinese ethnic like the language can be seen in this video. Some even can speak English using different version like Indian/British. My younger sister can also speak English using both American and British accent even though live in Jakarta since birth. Younger generation can even speak English even better due to the influence of satellite TV who airs program like CNN/HBO/ and others.