Joe,
As others have mentioned...
The reason that Schema.org would not want to maintain 6,500 language
versions, is the same reason that we don't have 6,500 versions of these
HTML tags
<head>
<title>
<body>
<cabeza>
<titulo>
<cuerpo>
Schema.org syntax is absorbed by Machines 1st, Humans 2nd. Just like any
other programming language or interoperable standard for machine
consumption.
Schema.org syntax is not a formatting syntax like CSS, but instead a web
standard like HTML. And it took us a long time to get here and even longer
to get JSON-LD propagated enough so that developers are now much more
comfortable.
Hope that helps,
-Thad
(the same guy who won't stop you or anyone from creating those 6499 other
language versions of Schema.org...go for it ! , and we'll gladly add them
into our repository !)