It is often argued that it would be better if all people in the world spoke the same language. I completely agree with this statement because it can improve peoples study or daily life.
Firstly, speaking in one lanuguage considerably improve students chance to apply prestigious universities. For example, universities which are came from USA, UK, and EU require ielts certificate at least 6.5 to just check whether students are able to understand lessons. Because of this many talented students who do not speak in english struggle to receive offer from famous universities. As a result a lot of students who have not learnt english ever since they were child lose opportunity to study in abroad. I believe that using only one language around the world might save young peoples time and effort to learn certain language.
Secondly, If people will communicate in one language it would significantly improve individuals social skills and their relationship between coolleagues. In the world quite many people work in english speaking countries althought they are not able to use english in daily life. For example some people who work in abroad struggle to talk with co-workers, which can limit individuals fredoom. As a result people can experience severe stress due to a lack of communication. If males and females would speak in the same language it might increase work efficiency.
In conclusion, I think that speaking in the same language would be beneficial for all people in the world. Because it can provide quite a lot of opputunities.