But all people are not adept in learning languages: some pick them up very fast, others take a long time, a few simply are unable to learn a new language even after many years. Some people are forced to learn new languages because of compulsion of the new State or country they have moved in to.
In most non-English-speaking European nations, you need to know their national language to study or work. In some countries, people are so attached to their language, they will talk only in that, irrespective of whether you know or not.
Language is elementary to communication, and therefore, to making an emotional connect. No wonder politicians and sales executives try to speak in the vernacular to sound more convincing and make an impact.
As much as emotionally binding, languages can also be emotionally divisive. When two people speak in a language that you can't understand, you feel left out. If you are a bit insecure, you might even think that they are talking about you. Some people see political agendas and hegemonic biases in a particular language.
I am not sure about other countries, but in India, languages is an explosive topic, like religion, unless handled carefully. Ironically, in the South, our own Hindi is a more divisive language than the foreign English. Similarly, in the North, our own local south Indian languages can be a put-off to many people, compared to English.
So, English is seen more as a link language, and generally more acceptable compared to our Indian languages. But some people see English as the language of the elite, and make every effort to dissuade other people from learning it, though they themselves will learn and ensure that their children too learn it.
A few months ago, in Bengaluru, the Metro Rail authorities were forced to remove Hindi signage from stations and drop Hindi announcements, since local Kannada activists saw Hindi signage as a symbol of the Federal government's authority in the State. (India's capital, New Delhi, is in the North where Hindi is the commonly used language.)
Language is just a tool to communicate. One shouldn't see anything more than that in it. You learn languages when you need to use them, unless you have a passion to learn them. Languages should be there for our convenience and comfort. More the better.
By the way, in a testimony to the diversity of our country, we don't have a national language. We have two official national languages - Hindi and English; and each State has its own official language or languages, which may or may not include Hindi and English.
(This post is a part of the "Blogging from A to Z Challenge April 2018.")