First of all, your word count is too much, you need to cut down on it. This might not set a good impression on the examiner. Besides you won't have a lot of time to write so much during the Writing Exam, you don't wanna start something you can't finish. Personally I always recommend candidates to write a maximum of 280-300 words. That is more than enough. Now let's begin evaluating your essay.
1st Paragraph:-
Staying in a country that speaks a different language than one knows can potentially cause multiple social and practical issues. I believe that even though this language barrier can lead to grave social challenges on a daily basis, the practical aspects of it can still be overcome because of the advancements in modern technology.
I would not recommend you using staying as a synonym for living. For reference read up more on it at
https://www.learnenglish.de/mistakes/livevsstay.html. Your intro need to be like a breath of fresh air for the examiner. It's like where you set everything in motion, so write it nicely and give it sort of a punch, a kick in the brain, so it wakes up the reader write away mentally and catches his/her attention.
I would have written it something like this:-
It has always been a matter of great debate whether residing in a nation where the spoken language is different than yours is a feasible idea or not. I agree that although it can be difficult socially, but nonetheless modern gadgets and devices can help one to settle in smoothly.
2nd Paragraph:-
I personally do not like using 'To start with" but I rather prefer "To begin with'
To start
(begin) with, the main reason for a foreign language causing social problems is that the difference in languages goes hand in hand with differences in cultures. Countries speaking different languages invariably have
very different and contrasting (very different and contrasting have the same meaning, please use either different or contrasting but not both) acceptable cultural norms and have their own unique do's and don'ts which should be adhered to. Additionally, the language nuances of a native speaker would not be understood by
someone who either cannot speak the language at all or if someone has a very basic understanding of the native language (too many words used to describe an idea, you can simply say "someone who is not familiar with the language).
For example (instead of using for example like everybody else try other different ways to state an example e.g. "For instance" - refer to ieltsliz linking words for more ways), there are many words in the English language,
example (use this properly like say "For example" not just example) "rubber", which
have (has) a completely different meaning in the US or UK when compared to other countries where English is not a native language. Similarly, some hand gestures like
a(the) sign for asking for a lift in a vehicle is benign in most countries but is considered
very(please do not use the word 'very' a lot, actually i recommend not to use it at all, I am sure the examiners are tired of reading it, it so over-used and cliche, instead use 'quite' like 'quite offensive') offensive in most Middle Eastern countries.
So we see that (Therefore,) no matter how much proficient one is in the foreign language, one can not escape making a small faux pas at best and grave social mistakes at worst, on a daily basis.
3rd Paragraph:
On the other hand, as far as the practical issues are concerned that one might face on a daily basis, due to modern technology aids, it is quite possible to an extent to mitigate or overcome those issues if one is resourceful. For example, most smartphones now have multiple apps which can translate between languages and thus make it easy to communicate simple requests to a native speaker. Google maps can be used to find directions in one's own language without the need to communicate with someone else. Restaurants reviews can be accessed on apps like Yelp, Foursquare etc.
(The thing that will make your argument stronger here is if you give a personal example, i.e. something from your own life experience, like you could even make up a story that you visited a certain foreign country and how you used to an app or a gadget to communicate with others). Remember examiners don't care if it's true or not as long as it's logical and makes sense.
Conclusion:-
In conclusion, one can clearly see that although it can be overwhelming to live where the language spoken is alien to to a person, the use of latest language translation apps and devices can assist us to communicate with the locals and gain understanding.