No PGA pro sticks it on the green inside 20 feet every time. If you are watching them on TV and think that they do then you are defo deluded. TV only shows you the players doing well during that particular tournament. If you watched The Masters last week how many times did you see footage of the choppers at the back of the field?
Who mentioned how close they hit it - anyone can take 3 to get down from 100 yards, better players take 3 from much further away. Hit is closer to the green from further away and you will score better - no matter how bad you chipping and putting is.
Keeping it in play off the tee is far more key to help getting it into the hole than the finishing off part.