communication barrier abroad
It is often said that living in a foreign country where you speak with non-local language would make communication problems, as well as practical problem. I completely agree with this statement.
Firstly, it is undeniable that difficult to communicate would be the barrier of living in a foreign country. While a new immigrant may always participate some society activities which hold by government or community institution, to know more culture or ritual about the country, language barrier hinders the social interaction between local citizens and immigrant. No one would accommodate to speak foreign language, or even there are no people can understand that what are you talking about although you behave to join the society. For example, there are many immigrants who come from China, living in Hong Kong and speaking with Putonghua. Sometimes, the locals may not understand that what they say. And it becomes a barrier for the immigrant who live in a foreign country.
Secondly, it also can be the main reason that different language would let immigrant to be lone. As living with a long time, the immigrant, who speak with foreign language, could not meet a new friend who applicate with local language. We know that the interaction is communicate through by language, you cannot interact deeply with others by using body language, instead of language. The immigrant would lost their friends at his local country also since they have not face with a long time.
To sum up, as the reason of communicate barrier and feel lonely, I entirely agree that living in a country who speak non-local language may cause social problems and practical problem.