My first thought is that, before LLMs, getting out of your comfort zone to work with folks in Kyoto in their language would have been an important step in getting yourself ready to live there successfully. It would have been difficult and awkward, but that's part of the process. Or it was. I wish you luck once you get there.
Hahaha thankfully I'm spoiled in that my wife is Japanese :)
I agree that especially in Japanese culture this absolutely would have been an important step, and honestly I experience the exact same phenomenon in having a Japanese wife as the post LLM spoilage you're describing here. I find myself basically never learning how to integrate because she handles everything for me and it's far easier to default to her.
So the fault is not in our stars, but in me :)
I think maybe it is more like having access to services at one wealth level up.
People would hire fixers or agents to do the nitty gritty details of a transaction like this in the past.