Literally none. You would be surprised at how unenjoyable video games can be for the uninitiated. This was an actual conversation I had with my girlfriend when playing SM 3D World.
Me: You don't have to jump, just press up on the wall to climb.
*she keeps jumping off the wall as cat Peach*
Me: You can just press up.
Her: What's "up"?
Me: Don't press A. Don't press anything. Just hold this *points to button*
*she jumps off the stage*
Her: I don't like this game.
We have never played a video game together since.
Me: You don't have to jump, just press up on the wall to climb.
*she keeps jumping off the wall as cat Peach*
Me: You can just press up.
Her: What's "up"?
Me: Don't press A. Don't press anything. Just hold this *points to button*
*she jumps off the stage*
Her: I don't like this game.
We have never played a video game together since.