Ehh, I'd rather not get scanned like a criminal. Disneyland simply doesn't have the same problems that Six Flags. Metal Detectors would be unncessesary, there really isn't any danger so it wouldn't be a safety issue, but it would be a huge show issue to everyone wander through detectors and get 'wanded' because they forgot about their keys in their pockets.
"If we cut the budget are you going to be the one standing at the exit explaining to guests why the ride they just rode is a piece of crap?" - - John Lasseter