We try to teach both US and World Geography, we really do, but what adults remember vs what they learned as kids depends quite a bit upon what they continue to use. Use it or lose it.
Kids from our high school do world country reports in our language classes. Groups also visit various places from French Canada or France, Spain or Costa Rica, and Italy (art students), plus around the science lunch table we mused about putting together a trip to the Galapagos for another year (because if the art students can go to Italy…). Overall though, not all students take those classes or care about more than the nearest beach when they vacation.
Even in the “old” days my mom (also a teacher) would tell everyone that kids can learn more by traveling than they can in school (assuming travel is not just to a resort where one never leaves).
I’ve had to combat the “need a passport to get to HI,” “Puerto Ricans aren’t Americans,” “AZ is a state in the US and not somewhere in Australia where kangaroos can be found,” “Mt Everest is in Alaska,” and similar mistakes from students, but at least they are students. They’re in school to learn.
From adults… one neighbor came out with a globe and said her elementary student needed to find 7 continents, but they could only find 6. Did I know where the other one was or was 7 a typo? (I told her to check the bottom…) When we were donating blood I wanted to know if our upcoming trip to Jordan would affect future blood giving and asked two workers at the center. The first one said, “Where’s Jordan,” and the second asked, “What country is that in?” I gave up and just checked on it later. When we were crossing the border back into the US at Niagara Falls the Customs Agent noticed “Cote D’Ivoire” on middle lad’s passport and asked, “Where’s that? Is it an island somewhere?” When told it’s a country in Africa he immediately asked, “Why would you go there?” in a very disdaining voice. This was a US Customs Agent. One would think he ought to know the various countries out there.
As with @Sue22, we’ve found most foreigners have far more knowledge of the US than most Americans have of other countries. Their knowledge of the US might not be complete or perfect, but it’s still far more than most Americans have of other places. This goes back to my elementary years. Having grown up literally on the Canadian border (from the road in front of my mom’s house one can look across the river and see Ontario), most of our school field trips went to Canada. We were touring a War of 1812 fort there and the guide asked our class to name Canada’s first Prime Minister. We were silent. He thought we were shy and asked again. Our teacher intervened telling him, “These are American children so don’t know that much about Canada.” The guide was dumbfounded (probably new - he was youngish). He said, "In Canada we all know that George Washington was the first US President. I’m really surprised that American kids living on the border don’t learn that John MacDonald was Canada’s first PM!) Then he continued on with his spiel about the fort - not dwelling on our lack of knowledge. I never forgot that moment though, and made it a point to be like the rest of the world caring a bit more about things outside our borders. I also use the story in school to encourage students there to care a bit more. My knowledge isn’t perfect, but it’s not empty either. It’s nice traveling and being able to engage fellow world tourists (from wherever) about world events. Perhaps related to that, most don’t correctly guess our nationality. We’re usually pegged as Canadian.