Because I can't hit a fade (on purpose) to save my life.
You could, if you practiced it.
I have trouble hitting fades too. I hit a lot of what I call "low quality fades" because I'm scared I'll double cross it left of left if I try to hit a nice compressed 5 yard fade. So I usually just swipe across the ball and make sure I peel one off to the right. I don't get that nice compressed feel and I lose a ton of distance, but it's my safety net....and my little 250-260 yd slice comes in real handy.