If we want to talk about how language can adversly affect children's academic success, why didnt that happen to my ex hubby's family? They all grew up going to American schools with a mother who didnt speak English. They were all fluent in Spanish and learned English when they entered school and now all 6 of them have college degrees with successful careers. To this day, their mother is not fluent in English.
Maybe it is because I grew up around cultural diversity in a predominately Spanish and English speaking community, I dont see any harm in exposing children to mroe than one language. I am not afraid of it.