Thank you!
Yes I initially imagined this as a quick way to make a backstory for a character (I was always annoyed that a character's backstory in D&D 5e was left as an empty block on the character sheet). So the applications you mentioned sound like great fits.
Thinking about it, I can also see this being handy if you're reading an informational book on Korean folk customs and want to make your own characters based on what you're reading.