Eraser cursor shouldn't disappear when erasing

Maybe I have my settings wrong, or I don't understand how things are supposed to work, but it seems to me that the cursor for Painter's Eraser Tool should NOT disappear when it is being used to make a mark disappear.

If I put a line down and then want to erase it, I would like to see exactly where my cursor is WHILE DOING THE ERASING. Is there some good reason why the cursor disappears when we are using this important tool?