OK, so your experience is different to mine. But NEVER and EXCEPT in same sentence do not agree.
I think most Thai bank staff will need to see and copy your Passport or Pink ID card when doing anything.
Have any other members got things done in a Bank without Passport or ID card? And if so, HOW?
So many Thais buy and wear T shirts with almost anything written, correct spelling or not, without them knowing what it says.
And most of them will not know who Adolf Hitler was or about the WW2 or Holocaust, maybe a few more Mr Putin.
How silly. How do you expect the Bank workers to do what they have to, if their rules say a copy of passport is needed. My bank must have 100 copies, I know it's daft but, them's the rules.
If she saw your avatar, SHE would be the one saying NO, not you.
Actually, she is my MP for Ashton-u-Lyne, so next time I visit I shall go see her, and ask .