However, you can use the "Pokemon Following" feature to have one of your Pokémon follow you around the world.
Here's how it works:
1. Obtain the "Pokémon Following" feature: This is unlocked after you defeat the Elite Four and become the Champion.
2. Go to the "Pokemon Ranch" in the city of Goldenrod: You'll find a building labeled "Pokémon Ranch" there.
3. Go to the "Follow Me" machine: It's located on the right side of the building.
4. Choose a Pokémon to follow you: You can only have one Pokémon following you at a time.
5. Enjoy your following Pokémon! The Pokémon will walk behind you as you explore the world.
Important notes about "Pokémon Following":
* Not all Pokémon can follow you: Only certain Pokémon are available to follow you.
* Following Pokémon don't battle: They only follow you around.
* They can get tired: If your following Pokémon gets tired, it will return to its Poké Ball.
* You can stop them following: You can recall your following Pokémon by pressing the "A" button and selecting "Stop following".
While it's not the same as "walking" your Pokémon in the traditional sense, the "Pokémon Following" feature adds a nice touch of realism to the game.