>>48131037Blocked objects is an artistic device that sometimes used by level designers to make levels appear bigger or more lively, without the overhead of actually adding interactible environment, it's used in games of all genres, from turn-based strategies to first person shooters. As for Pokemon, for example this pond behind the Pokemon Center in Cherrygrove, or the entirety of Sword and Shield (beautiful sceneries everywhere but you can only walk in narrow invisible "tunnels" kek).
I'm not saying interactible objects like NPCs or Pokemon should be barricaded inside the forest, but landscape elements like water bodies, buildings, grass and trees - why not?