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 :)