Oh, I forgot I wanted to mention something.
I had the opportunity to work with a number of preteen bilingual/trilingual kids. English was their second language and these kids were all from middle/upper middle class families (with one exception).
All the kids had at least one parent at home that spoke English and then picked up their native language either through the other parent or school. The kids all were able to speak English like native speakers, although they did have to occasionally ask the meaning of a word. However, sometimes their reading and writing skills lagged behind. They prefered to read/write in their native language and many times would switch to their native language to talk to each other. However, in homes where both parents spoke English (or it was a single parent situation) those kids were more likely to have better reading skills in English and read in English for fun.
