Recently, some humans consider that eventually the entire planet will speak only one language.
However, in my opinion the advantages will not outweigh the disadvantages because in my view it is vital to respect and be aware of your own nationality, as indigenous persons were determined to share language and pieces of knowledge with us.
On the one hand, the launch of a unified language system will simplify the connections between different countries in economical and social way. For example, Spain and Argentina easily tackle problems with import and export, because Spanish is spoken worldwide. Moreover, it is noticed that different language communication frequently faces a contradiction between countries because of the opposing political views. Thus, the one language will make all human beings equal and will eliminate racial and social hostilities. Furthermore, education will be more available and easier for students. While I was staying in the UK for two weeks, I came across people who were judging me upon my native language.
On the other hand, one language use will foster the lost of countries cultural heritage and traditions that had been maintained and enhanced by our ancestors. My mother tongue tatar is being disappeared recently, luckily our government puts efforts in order not to lose our identity by organizing events and clubs for better language learning and practicing.
In conclusion, I assume that it is more beneficial to preserve a society with multiple languages, because the process of diving deeply into languages learning will provide you with better working opportunities and career growth.