Yes, by the time you are an adult, you're expected to have some rudimentary understanding of geography and the arbitrary names humans assigned to places. I have a hard time imagining that someone would not know where Paris is by the time he reaches adult age. Not all learning is done at schools, you know.

Here's the thing: we have such things as maps. There are still occasions today (I'm almost 33) in which I am unsure where's a particular location. So I look it up. Next time it comes up, I won't have to.

I do not know the name of the capitals of most African countries. There are some small countries which I have probably forgotten about. But, if in doubt, I can research the damn things.

That's different from memorizing the multiplication tables.