The day when globalism prevails, and we all live in pods and rent everything we use
This.
There's a reason why they want to homegenise the human race - getting us to speak one language. Much easier to track and control.
It's the reason why spies are so in demand. A lot of people don't realise that most spies are only approached to become spies because they speak more than one language. And speak it well, fluently. Better still if those spies can traverse both cultures and understand the nuances between them, say UK and Russis, or US and Japan. Random examples...
Even translation itself lends itself to extreme nuance. And the devil is in the details. How many translations are there of The Brothers Karamazov? How many have you read? How many do you have an opinion about? Exactly, you don't speak BOTH languages to that level, so you will always be at the mercy of those that do. Or those that break it down for you:
5 BEST TRANSLATIONS OF THE BROTHERS KARAMAZOV
DOSTOYEVSKY HATES THEM!!!!
Extra good boy points if you speak a language like Hungarian. No known roots in any linguistic tree, a totaly fucking anomaly in languages and one of the most difficutlt languages to speak or learn. Extra extra good boy points for understanding the culture. Then again, of course you will because unless you were brought up in fucking Hungary, you would never get to that level.
Every baby when it is born utters every single possible vocal form from its mouth and guttural tract. Within six months it's speaking Japanese or Welsh or Russian or English. It filters out everything else unless it has another reason not to like a Mother/Father that speaks another language. This is how some babies get to be bilingual and to speak both English and Spanish, or French and German. It's not because babies are clever, it is because they are receptive. Their early influences are profound for them. Start 'em early - the earlier the better - and they will be speaking three languages if you can give that to them.
As for the rest of us. We get older and lose our neural plasticity and learning capacity. It's ok, it doesn't mean we are dumb, but we are just weary. There's only so many neurons to go around and there are better things to spend them on. Learning languages gets exponentially more difficult as one ages. This is also universal across all races and peoples.
Things get more complicated again when we get to understand concepts like dialects. Go to the next village 4 miles down the road in Wales and they will pretend to not understand you. Sometimes they don't understand you. But it gets tribal. Most people can't tell a Scottish accent from a Welsh accent if they come from the USA. But most people in the UK can't tell the difference between a Yorkshire or a Lancashire accent.
On the converse side of the coin, there are villages in Yorkshire/Lancashire where they will fight each other because they can spot an accent that is just 5 miles out from their village. You might as well be a nigger to them. It works both ways. Both being able to not pick up on native dialects, and being so finely tuned to any subtle difference in dialect that you are willing to fight to the death. It needed to be this way early on. Shibboleths abound. And for good reason. Well, back then anyway.
All this is well documented if you study linguistics to even a rudimentary level.
Apart from all that, there are just too many people in the world - nearly 8 billion now - who just speak very different languages and very different dialects within those languages.
And as much as it may be a fever dream and desire of the ruling classes to get us all homogenised and whatnot, it's not really going to 'appen.