TR - you forget one thing... when many of us were kids, there was no metal/wood choice - if you wanted to play the game, you swung wood. Period. And kids did succeed and did stay interested because that's all they (we) knew.
Today kids see the difference that metal makes and CPLZ hits it right on the head - it is all about the sweet spot. Metal bats are way more forgiving than wood - all those duck-snort bloop hits go away when you hit with wood. I think players today CAN handle wood, if they get the experience, but the fact of the matter is they don't.
You say "the reason most of us play wood is simple" - where do you play that "most" of you play wood? Most of us here in the Midwest play metal, with a few exceptional tournaments here and there. My own son nearly got lynched by his own travel team when he opted for wood one season - it took a while for him to start producing power again, and nobody - from coaches to parents - appreciated his experiment. His high school coach forbid the use of wood in the batting cages - which made me tempted to forbid the use of the $350 bat for practice... but that's another story!
Another interesting facet - here in the Midwest, 2/3 of our high school season is played before the weather ever gets close to 60 degrees, and yet every metal bat carries a warning about using it below that temperature. So bats are destined to fail. I guess the only consolation is that you know when you buy the bat you're really paying for two - the first one and the inevitable replacement. Although we've found you need two at all times to cover you while you're getting one replaced. It's a racket - oh, wait, that's another sport!