Hola! Ciao! Bonjour! Hallå! 你好!
Hello and welcome to the global graph of international speakers.
Why are there so many programming languages? Anything could be developed in Python, but some things are easier to express in Haskell. A language is more than grammar. It includes design patterns and conventions that are natural for practitioners but less obvious for others.
We feel the same about spoken language. Idioms and traditions enrich single words and phrases with meaning that would require explanation for non-speakers.
Here we can have discussions with our international colleagues.