More precise it should be called Pascal case, with the first letter being uppercase, as for all German nouns. The German Wikipedia article about "Binnenmajuskel" provides a bit more information about usage in natural languages.

Also after writing this, I noticed the inconsistency (from my view) that in English there are exceptions with words written uppercased, too, like "German", despite being an adjective and not a noun. Which might be irritating, as these words can also be used as noun (also for other words which are not nationalities and written lowercase), and there is no distinction between an adjective and a noun.

In German all adjectives are lowercase, all nouns uppercase.

You can actually get an implementation using Camel-Kebab, but it's a package deal with the other rules of "easy German" a.k.a. Leichte Sprache https://www.leichte-sprache.org/leichte-sprache/die-regeln/

Many government websites also offer information in Leichter Sprache.

Wow, many of the differences between Leichte Sprache and hochgebildete Sprache remind me of the differences between imperative and functional programming styles.

["Benutzen Sie die Anrede Sie" ... would that we could convince corporate marketing types to follow this advice as well!]

+1 Vote.

The spanish people similar bug in our language. We have "accent symbol" optional (with a complex rules) for the words.

When I was a child, I thought it is more easy if the "accent symbol" is mandatory for the words. But the RAE (it is a public institution watcher spanish language rules) said no.

Or we could just not concatenate our compound nouns, like all the other languages.

The Finns would like to have a word. A very long one.

Entschuldigung!