Tweens. I've heard them described as colorfully as, "Too old for toys, too young for boys." (Or girls, but I guess that doesn't rhyme, does it?) It's that delightful but somewhat difficult age of 10 to 12, though some would argue that the tween years begin as early 8 years old. Not a small child anymore, but certainly not with the maturity or responsibility of a teenager.
So what about touring Disney World with tweens? After all, if they're too old for character greetings, Dumbo, and princess dresses or pirate costumes, is it even worth it?