There's a quote I've come across before, never make fun of someone mispronouncing a word in English, because it's a sign they are a reader.

I was in my 30s when I learned "ennui" was pronounced "on wee" rather than N-U-I. I did not know it was from French. No shame. I never spoke the word aloud, but used it in writing. A teenager I knew was studying for a vocab test and had to learn the word, and I overheard him flash carding. Pronounced it "on-wee" and my brain exploded.