I definitely agree with this statement that living in a state where you are forced to communicate in a foreign tongue might cause difficulties in socializing, as well as in daily tasks for a range of reasons.
It is no doubt true that settling in a land where people talk in a different language can be quite challenging. First and foremost, it could be argued that acquiring new comrades or even adapting to various social groups is hard, and it would appear that one might fall into depression, as humans cannot survive without communication. On the other hand, it is well said that an individual with no knowledge about the language, can enhance it so that by constantly being in touch with native speakers they may adapt in a safe pace, however, I believe that this period can take a long time and by then stress will be inevitable.
Another important reason could be thought that one might break some rules or have difficulties in local services like public transport, which is bound to the fact that majority of the signs on the streets are not familiar to them, similarly, directions, stations, and maps, consequently, difficulties in everyday life might arise which can cause serious problems. For instance, my cousin lived in Vietnam for 3 years, and in her first year, she accidentally confused stations in the train, as a result, instead of arriving in one city she ended up in another.
Considering all above-mentioned facts, we could sum up that, it is understandable that living in a country with an unfamiliar language might tackle your social life and daily routine.