I don't really mean that sort of learning; what I mean is that educated people might be expected to know, simply as part of their repertoire of general knowledge, the name of the capital of a neighbouring country, or what the proper name of the United Kingdom is. In Europe most educated Germans know the name of the capital of France and vice versa, I think.Terry Pratchett
The way I'd say it is: to the average citizen general information about other States is meaningless. People know more things that relate to stuff that is important to them, or is relatively close by.
To stick with the Capital of Canada thing, I'm sure that at some point, probably probably in the 10-12 year old school age range, every child could regurgitate major country Capitals and US states/capitals ...