For example, there might be a puzzle - the player isn't keen on solving puzzles and doesn't want to bother looking for a solution, but says "Hey, my character has high intelligence, so he should be able to figure it out." You include an option to choose an attribute check instead of solving the puzzle manually.
"I don't feel like playing the game today, but hey, my character has high intelligence and stats, he should be able to do it himself! We need an option to let him finish the game while I sipping a cup of a hot coffee."
The game that plays itself.
