A term to describe the phenomenon that people travel more and know much better abroad but interestingly, than their local country/city?

I don’t know if you have this experience, or if you have noticed, that a lot of people who like travelling abroad, have actually not been many places in their own city, probably because it’s so close to their home that they think they can visit any time, hence they keep deferring and turn out have never visited even once in their life.

For example, a Parisien might have been many great tourist attraction sites around the world, like the Great Wall, the Iguaçu Falls, the Machu Picchu, the Angkor Wat, but have never visited le musée du Louvre, despite it being located within his/her city.

I have encountered this many many times in my life(including myself, haven’t been to the Great Bronze Buddha and Disneyland in Hong Kong after years), thus I really want to have a vocabulary to describe this phenomenon.

Thank you in advance.