Disabling Keychain password storage for specific accounts on iOS

Mr. Tarasov "answered" this question - sort of - previously, but focused on the part about that user wanting to keep it from family members.

I also want Apple to quit asking me to store my password for certain accounts, but not because I want to keep my family out, but because I don't want these passwords stored on my iPhone and MacBook. I also use 1Password, and do not keep those passwords there but 1Password DOES ASK if you want it to stop asking.

My issue is when it constantly asks me, one of these times I'm just going to hit Return, and there it will be, stored, when I do not want it to be stored.

So the question is NOT how to keep it from my family, but how to keep it out of storage all together. It doesn't have to do with how iOS works, it has to do with Apple offering an option to turn off the request for certain accounts.

[Re-Titled by Moderator]