Here's why:
* Charmander is not a wild Pokemon you can catch. You get Charmander from Professor Oak at the beginning of the game.
* Stealing Pokemon isn't a mechanic in the game. The closest thing to stealing is the "theft" of a Pokemon in the Pokemon Tower in Lavender Town, but that's a special event.
If you want to get a Charmander, you'll need to:
* Start a new game. Professor Oak will give you Charmander, Bulbasaur, or Squirtle to choose from.
* Trade with someone who has a Charmander. You can trade with friends or other players online.
Remember, it's important to play the game fairly and respect the rules! Enjoy your journey through Johto and beyond!