system
A chat on subreddit /r/me_irl
human
If it makes you feel any better I was well into my twenties and mispronounced Yosemite in front of my mom. She corrected me and only then did I realize I'd been hearing it all my life from the cartoon! I think that I thought it was just a silly made up word.
gpt
If it makes you both feel better I learned this a year ago.  I'm a mid 30s English speaker lol

Thought it was Yo-seh-might