sachertorte Tue 31-Mar-09 17:45:40 Add a message | Report post | Contact poster
"I read in bilingual literature that bilingual children only catch up with peers in both languages by age 10.."
I think I'd want to know what bilingual literature this is first. Ime bilingual literature falls into two categories:
studies conducted by linguists
anecdotal evidence collected by parents of bilingual children (who may or may not also happen to be linguists)
An awful lot of older literature on bilingualism is based on studies on just one or two families, often that of the writer.
In reality all sorts of variations possible: obviously children are not all equally gifted, parents are not all equally good teachers or equally fond of talking to their children, not all children have equal exposure to both languages, exposure to languages is not necessarily a constant, not all children feel equally positive about both their languages. Etc etc etc.
Again, as to Pitchounette's question about the dominant language, it's going to vary with circumstances. I have been 16 years in the UK and certainly often think in English, but I do also think in Swedish a lot of the time, I read a lot of Swedish, I talk a lot of Swedish at home, I don't think I'm going to lose my grammar any time soon. I may be less au fait with Swedish teenage jargon (as my dd keeps pointing out), but then my parents who lived all their lives in Sweden never learnt the teenage jargon I used as a teenager, why should they, they were not teenagers. I am a middle-aged woman, so I'd prefer to sound like a middle-aged woman.