[jpk2f2]

It's really no different from immigrant families where the parents don't speak English, but the children speak both languages.

I've known plenty of people and families like that, it was never an issue.

[rantymcrant]

I've known plenty of people like that where is was an issue. The parents can't rely on neighbors because they can't communicate. Don't have as many friends. Have trouble at local stores, doctors, agencies, etc...