Pen or Woods?

Personally i like to start in the pen, I've had them start as early as 3 months on a small pig, you cant haul one that small to the woods, so by the time he gets his wheels , he knows what a hog is, how to bay it how to stop it, and how to get his butt out of the way. I just fill like you are getting them ready for the outside world. I look at it this way, if a person was totally against the pen he would have to wait for a pup to be 5-6 months old before he takes him or when he really gets his wheels, which could take longer. So If I can start one at 3-4 months I all ready got him ginnin, and he's got a head start, so all the next step is to get ahead and use his nose, half the battle is won just my opinion...................W.D.