DOUBTS ABOUT LEARNING LANGUAGES

For 95 percent of the world's population, the sole advantage of learning foreign languages is that it might keep their brains nimble and sharp.  95 percent of the population of the globe is monolingual, with scanty knowledge of their own language. They make do with a limited vocabulary simply because they have no need for more as their daily activities only require simple sentences which are repetitious. For them, acquiring a second language is an unnecessary effort that has no end in itself. However, possibly, trying to master a second language, even in a limited scope, might activate their brains and keep away the phantom of "old timer´s disease", also known as Alzheimer´s disease. Other than that, there´s no valuable purpose in pursuing language studies. Delfín dixit!