It's pretty different in terms of culture. Regions like Kanto and Johto in the east have completely separate traditions and beliefs than Galar does in the west. I can't really think of anything that's similar... even our Pokémon Leagues work on completely different systems.

[ and Raihan would argue that the Galarian system is better and cooler, but Ren wouldn't know enough to give the argument any weight. ]

But that one thing that links us together is being Pokémon Trainers. That kind of thing transcends borders - kind of like a universal language!