Comment by ozgung

We created our own letters and our own rules. In 1928, long before code pages and computers.

The assumption that letters come in universal pairs is wrong. That assumption is the bug. You can’t assume that capitalization rules must be the same for every language implementing a specific alphabet. Those rules may change for every language. They do.

And not just capitalization rules. Auto complete, for instance, should respect the language as well. You can’t “correct” a French word to an English word. Localization is not optional when dealing with text.