Nowhere does the us "center of the universe" mindset shine more through, then when to expect the world to remember the presidential dogs name.
I think everybody does this to some extent.
Like, I remember someone telling me at one point that the thing in Head over Heels was a Dalek with prince Charles head. I didn't know either of those.
Well, the main hurdle was that we were 7-9 years old iirc and didn't know any English at all, beyond the memorized "knock knock" etc. So the topic of the questions wasn't on the table :-)