I suspect the real reason people find it hard is economics. Contrary to this article, I don't think it's actually particularly valuable.
Yes, most times you don't really need to know a language. In the old times in europe, many village people never left their home village. As long as you can understand everyone in your village, everything is fine. Traders, priests etc had to learn multiple languages and often used latin as lingua franca.
Nowadays, in the western world, knowing english is often enough to communicate with most people you have to do in various areas of your life.
The exception confirms the rule: sometimes, languages are useful for jobs. In the CIA for example, they actually do encourage employees to learn languages. Because knowing the language of the country your work is about is actually helpful.
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Yes, most times you don't really need to know a language. In the old times in europe, many village people never left their home village. As long as you can understand everyone in your village, everything is fine. Traders, priests etc had to learn multiple languages and often used latin as lingua franca.
Nowadays, in the western world, knowing english is often enough to communicate with most people you have to do in various areas of your life.
The exception confirms the rule: sometimes, languages are useful for jobs. In the CIA for example, they actually do encourage employees to learn languages. Because knowing the language of the country your work is about is actually helpful.