Have you ever watched a college punter kick when they are just messing around, not worrying about snaps, rush, or coverage? They boom the hell out of every kick. That is not the hard part of their job. Add in the reception of an unpredictable snap, time-constraints, directional considerations, an oncoming rush, the need to cover, and tens of thousands of screaming fans, and things get much, much harder. Don't assume that because you know someone who can boot a ball 40 yards under completely stress-free conditions that it is an easy task.