Something like this should be implemented in the game so that players can have the opportunity to face off against robots to practice their skills in a tutorial kind of way at the beginning of the game. The game takes so long to get into any kind of combat situation, and new players won't always experience the great combat this game has to offer. They won't be able to practice unless a buddy is on to train them, and they'll spend hours and hours crafting and preparing for a fight that they won't win because they won't have any combat experience.
The same combat AI can be used for AI guards and archers that the player can "hire".