Leaning

Should leaning be in a Medieval fantasy game? I think it should be even if its a single player game because, it adds more immersion if done correctly. it  an add a number of new things in the game you have to take into account, for example if you lean far enough to the left a person swinging down and to your right will miss. For another example if your playing as a thief it will allow you to lean around corners to peak and see if guards are coming or if the coast was clear. it can also widely increase your moves for combat. maybe if you lean right your heavy attack would be to step backwards and swing up and to the left. Just this little piece of game mechanics can change how the entire game would be played so when i get to the mechanics to attack i will do them with the ability to lean and without and which ever product i think makes the game more immersive ill choose. Leave your thoughts below and any suggestions.