The answer if pretty simple.
Cropped ears and docked tails were the standard look for Schnauzers, I believe all over the world. Though I'm not positive about that.
Anyway, as people (and laws) have moved away from cropping and docking, the U.S. is just lagging behind. We often do, for example allowing chemicals in our products that have been banned in other countries for years.
I would think that any breeder would be very happy to leave the ears uncropped (which is becoming very popular now) and even the tail undocked by request. The problem is that the tails are docked when the puppies are just a few days old. At this point the nerves haven't developed, and the puppies typically cry when you take them from their mothers and stop crying when you put them back.
So to get a puppy with an undocked tail, the breeder would have to decided that it is going to someone who wants the tail undocked just a couple days after birth.
If they don't know at that point, they would likely dock them because after that point the nerves are developed and it becomes an amputation.
We used to have a forum member that was a vet tech and she preached against tail docking, saying it was a painful, bloody process and she hated to hear the dogs screaming. But after much discussion with her and breeders I know, I concluded that she was talking about docking the tails of older dogs, which I call amputation.
To me it's ironic that there's all this fuss about docking puppy tails and then the same people who object to it regularly let their groomers quick their dog's nails. Now THAT'S painful!
See: Nail Quicking and How to Properly Trim Nails