If Preferences locale is not selectable, why not hide it

[LaoshuBaby]

First of all, I make sure that I know that in most international academic exchanges, English is the most popular and commonly used language. I found this option in zenodo's profile settings where I can set the preferred locale. I clicked on it out of curiosity, but there was only one option: en.
What is zenodo's opinion on supporting other languages ​​in the user interface? Do you prefer to allow multiple language support in the interface (then I will be curious why there has been no community translation for so many years), or prefer to encourage the use of English, which is the most common in academic communication (then, why not just hide this locale option drop-down menu?)?