Living in the place where you can't where people don't speak the same as you do can be really tough. Although, there might be some people who just want to immigrate and don't even know how challenging it could be to live in other location where you do not know there language properly. I, do believe that not knowing the language of the country where you are living can cause major problems practically and socially.
Different locations in the world have different languages and to be able to communicate with other people of that area one must be able to know how to fluently convey a message in that area's common language. Not knowing it can cause a many social problems like a person cannot be able to talk to other people of that location. There was one reasearch done at such kind of person who don't know the language of particular area where they live and in reasearch it has been found that those person's was more lonely and depressed. Consequently, it creates many such kind of social problems.
There are many practical problems also related to these kind of scenarios'. For example: - Such kind of person will not be able to shop or buy day to day life things from the grocery store. They can lost in the city as they might not be able to communicate or able to read the intruction boards on the road. On the contrary if you have a community of same people that speaks same language living in other country than it might be little easy for these kind of people to live but it will be very hard to find the person from the same country.
Concluding all I will just say that if a person doesn't know the language of the country where he is living whether it's foreign or its local that person is going to face alots of problems.
So, it is really necessary to learn that country's speaking where you want to get immigrated. 
 Living
 in the place where you  
can't where
  people
 don't speak the same as you do can be  
really
 tough. Although, there might be  
some
  people
 who  
just
 want to immigrate and don't even  
know
 how challenging it could be to  
live
 in  
other
 location where you do not  
know
 there  
language
  properly
. I, do believe that not knowing the  
language
 of the country where you are  
living
 can cause major problems  
practically
 and  
socially
. 
Different
 locations in the world have  
different
  languages
 and to be  
able
 to communicate with  
other
  people
 of that area one  
must
 be  
able
 to  
know
 how to  
fluently
 convey a message in that area's common  
language
. Not knowing it can cause a  
many
 social problems like a  
person
 cannot be  
able
 to talk to  
other
  people
 of that location. There was one  
reasearch
 done at such  
kind
 of  
person
 who don't  
know
 the  
language
 of particular area where they  
live
 and in  
reasearch
 it has  
been found
 that  
those person
's was more lonely and depressed.  
Consequently
, it creates  
many
 such  
kind
 of social problems.
There are  
many
 practical problems  
also
 related to these  
kind
 of scenarios'.  
For example
:  
-
 Such  
kind
 of  
person
 will not be  
able
 to shop or  
buy
 day to day life things from the grocery store. They can  
lost
 in the city as they might not be  
able
 to communicate or  
able
 to read the  
intruction
 boards on the road.  
On the contrary
 if you have a community of same  
people
 that speaks same  
language
  living
 in  
other
 country than it might be  
little
 easy for these  
kind
 of  
people
 to  
live
  but
 it will be  
very
  hard
 to find the  
person
 from the same country.
Concluding all I will  
just
 say that if a  
person
 doesn't  
know
 the  
language
 of the country where he is  
living
 whether it's foreign or its local that  
person
 is going to face  
alots
 of problems. 
So
, it is  
really
 necessary to learn that country's speaking where you want to  
get
 immigrated.