This is Jim2 orginal question: "See “Need Convincing”. Papa Smurf’s last post mentioned the Hiker Shuffle. And lingering foot problems. In my naive thought process I’m expecting that if I get the right boot, the right sock and break both boot and feet in properly, feets won’t let me down. What did I miss? "
You are not naive----if you are absolutely 100% prepared for the trail, feet, boot and backpack wise, then you will have few if any problems----some, but less than most hikers. You need to do lots and lots of pre hikes, that is section hikes with full backpack and get you body and feet in tip top shape. Then you will be ready for the AT and you will do well. I think most folks that drop out in the first 100 miles or so, many drop out in the first few days with less milage, did not prepare themselves well physically for hiking the AT. The best gear in the world will not do it for you, if you are not in shape to do it. So lots and lots of hiking/walking/backpacking before you start.
If you and your feet are in super fantastic shape, then you can hike barefoot and be okay—providing you have been hiking barefoot and have gotten your feet in shape for it. Shoes have only been around for maybe 10,000 years or so and man has been here for about a 1,000,000 years—so do you really need shoes/boots?
There are lots of right answers to your question, which may be right for the person answering the question. But there is only one right answer to your question for you. And that is whatever works for you and is right for you. Pre hiking, lots of section hiking should help you find the right answer to your question. Get out and hike/backpack as much as possible to prepare.
If you read many journal entries, you will see that many of feet problems are brought on by pushing too hard “Got to do that 20 mile day, day after day” or by accidents “in a hurry, steped on a rock the wrong way” or carrying too much weight and trying to do too many miles with it.
Heavy duty footware and socks will protect your feet. They may save your ankles from being twisted or broken. But make no mistake about it, you can still break your ankles and twist them even wearing 9" high boots, but it’s a lot less likely. We wear shoes and boots, even flip flops, to protect and cushion our feet—to keep them confortable, unblistered and uncalloused, but the fit needs to be right and everything else associated with it----and we need to condition our feet to the shoes/boots and they need to be the right size, etc. etc.
So once again the learn section of the Camp/Hike section of the REI website has soom good advice on footware and socks/sock liners. It also has some good advice on conditioning.
So the bottom line is that everyone is right—Papa Smurf, Chipper, Bluebearee, etc. etc. and me----but you must find what is right for you. Good luck. Keep on hiking.
Maintain