Apocalypse69 wroteMy opinion for what it's worth in this situation, is he doesn't have very much to do with his daughter at all. He let's the wife bring her up alone. The daughter learns Indonesian as the number 1 language but doesn't learn English as the father doesn't have very much to do with them at all anyway. At least that's my take on their situation
Don't be too quick to judge, kids that come from multilingual homes are known to take longer to start speaking than those that are just around one language. Even if they aren't speaking both languages (and in some cases not speaking at all), doesn't mean they aren't taking it in. I've heard of a few cases where a child is growing up in a home with 2 or 3 languages, doesn't speak at all until they're 4-5 years old, and then bam one day they just start speaking (and sometimes in more than one language).
I have a mixed two year old daughter, she speaks english to me and indonesian to my husband. Because we heard from so many mixed families that their children took longer to speak, we were nervous and prepared that it could happen to our daughter as well, but, she picked up the languages easily, knows most words in both english and indonesian, and even knows who to speak to in what language. Kids are so bright, and they develop at their own pace.