Some human languages actually work this way though. Nouns are always capitalized in German (not just proper nouns as in English). This is sort of a "syntax high

Some human languages actually work this way though. Nouns are always capitalized in German (not just proper nouns as in English). This is sort of a "syntax highlighting" in a way. Actually tying it to programming languages, the reason why some older languages made keywords mandatory upper case was to make them easy to spot in a listing before editor syntax highlighting was a thing.