English has Rules, Just Like Japanese!

[Eloah]

I also misread your quote—I’m fairly certain she says “Where one doth not suffice.” Not “Well”.

Noun phrases can include pronouns—or it can just include a noun (usually with a determiner). But noun =/= pronoun. Since we’re discussing “one” being used as a pronoun, I don’t think this sentence demonstrates that if one were to parse it, since it would likely be determined that “one” here serves as a noun. Not a pronoun. But this is obviously beyond the scope of a mere joke.

In the context of the quote, where and well would essentially mean the same thing, so that's more on someone hearing capability, since the meaning of the sentence remains the same. As far as One goes, I wasn't calling it a pronoun per se, it is a noun, but it's an adjective at the same time, and pronouns offer a similar function, conveying two pieces of information in one word. Like she is singular female, we, multiple collective, stuff like that. Similar to adverbs, but I dont think we has a proper term for an adjective noun, that's why I said a pronoun is the closest thing.