Here's why:
* Wireless Communication: Both games rely on wireless communication for trading. However, the ability to trade is restricted until you reach a certain point in the game.
* Game Progression: The games are designed to allow you to explore the world and build your team before engaging in trading. This ensures you have a strong team to tackle the challenges ahead.
What you CAN do:
* Beat the game: Once you've completed both games, you can trade Pokémon freely.
* Use the GTS (Global Trade System): This allows you to trade Pokémon with players around the world, regardless of game progress. However, you'll need to beat the game in both versions to access the GTS.
Important note: The Pokémon you can trade might be limited depending on the game progress in each game.