This isn't even that uncommon in Western countries. For example Cardiff Castle has free entry for residents, but non-residents need to pay for entry (at least,

This isn't even that uncommon in Western countries. For example Cardiff Castle has free entry for residents, but non-residents need to pay for entry (at least, that was the case when I was there a few years ago). The museum in my city in the Netherlands is €6 for residents of the city, and €13 for non-residents.