As a language nerd you should know that the don't-end-a-sentence-with-a-preposition "rule" is a total hoax perpetuated by latinists who thought English grammar was too impure. Well, English is not Latin. English has always ended sentences with prepositions -- Chaucer, Shakespeare, and the King James all do it. And you shouldn't be ashamed of doing it either.
I know it's not inherent to the English language, that's why I want to not care about it. But it's also something that was ingrained into me early in my education, so it's something I care about a little. Like multiplication tables. No one cares about multiplication tables but they're hard to forget when you're drilled on it from 4th grade to high school.
That seems like a bad example, since those tables are objectively correct and do have quotidian use, rather than being a falsehood of which knowledge is actually harmful.
