Yes, but I can point you at a piano and tell you to push this key, and no matter how clumsy or unskilled you are, you can push that key and it will make a noise. There are mechanical elements that almost never fail that you can learn to put together. Visual art doesn't really have the same sort of building blocks.
Pixel art is something I feel almost anyone can learn if they study and copy technique. Unless you have visual failings to prevent you from seeing how things work, you can learn it. You *can* give step-by-step instructions.
Hand-drawing? Some of it seems to be inborn. I've had to work a lot to get as bad as I am, and I still totally suck. :) My sister can't even draw a stick figure. She's never had very good manual dexterity - her handwriting is quite large, she was a total failure at Breakout on normal mouse sensitivity. She will never be a (drawing type of) artist. No amount of step-by-step instruction will help.
(edited, because OBVIOUSLY there are many other kinds of art. Her total inability to DRAW doesn't mean she couldn't be visually creative if she felt like it.)