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I dropped KCD 1 after ~30 hours for the same reason as you, but at least KCD has some justification - the whole point of the game is to be an ultra-realistic simulation of medieval life, a roleplaying game in the truest sense of the word.
Your character starts out not even knowing how to read, even though you, the player, obviously do to interact with the GUI. He’s the son of a blacksmith who never would have learned anything else, so he, the character, has to spend time learning basically everything, even if you, the player, already have it figured out.
You and I think that design is unfun. Clearly, though, there’s an audience for it, as KCD 2 sold something like a million copies on launch day and instantly recouped their development costs.
In a physical medium, it’s way cheaper and easier to make light color thing dark than make a dark colored thing light. “Dark mode” books would require dyeing each sheet black, then painting the text on top of each sheet, rather than what is currently done, where we bleach each sheet white, then dye the text into each sheet.
Somewhat related - this is why printers use CMYK, rather than RGB. Computer screens use pure light, so they simply emit whatever combination of light they need to, and your eyes add them together. In a physical medium, however, what we see is based on what is reflected, i.e. not absorbed. Hence, each color of ink, in additive terms, is two colors together (cyan is green+blue, magenta is red+blue, etc). When you combine CMYK colors, you can precisely control what wavelengths of light are being absorbed in order to reflect the correct color.