You’re EXACTLY spot on! I lived in Japan for 2 years, 35 years ago, in an area that didn’t have any Westerners. Every day I learned something else that I was doing wrong. The last day I was there, as I was locking up to go to the train, my assistant pointed out that I pushed something with my foot, which was so rude to do. I’d been pushing things with my feet for 2 years and never knew I was being rude. It was ALWAYS something. And, just so good for me. The lessons you’ve enumerated I’ve kept my whole life, plus perhaps some others, and they have served me so well. Good on you! Keep thinking! Keep writing!