You have to hit on a dogleg that curves from right to left.
You cannot seem to find your correct alignment without laying a club down in front of you or your body at address.
You have a downhill lie in a sand bunker with your leading foot down slope.
You need a fade but at the same time, you have to keep the ball low.
You are drawing the ball when you set up for a fade.
It is a windy day and you need to play a dogleg that curves to the left with a strong left to right wind.
It is important that the ball lands in the fairway with your next tee shot.
You have difficulty drawing the ball.
You want more control over your wedge shots.
You want to gain a longer tee shot by hitting a high draw.