
No-one ever forced anyone to dock or buy a docked puppy, there is no cruelty involved, and it is most hypocritical of the law makers and Vet profession. Lambs tails are docked without anaesthetic as are piglets, both species having fully developed nervous systems at the time. I won't even go into de-horning, all done without anaesthetic, and by lay persons.
Snipping off a newborn pups tails is nothing by comparison, and if that is how the breeds were evolved and the way they are preferred to look what was the big deal, certainly the pups barely notice, and in the case of banding (ligaturing the tail) they don't notice at all.
I am not at all surprised that the womans puppy buyers wanted docked pups, and a lot of people will be put off by the tailed pups now, and will not want one. People want their boxers and Rotts etc to look like they always have done.
I know many people have preferred their docked breeds because they do not have tails that wag and knock over things and splatter the wails in mud and blood.
I don't own a docked breed, mine have tidily curled tails, but I still prefer the docked breeds docked.
Suppose the law suddenly said all dogs had to be docked, the ones that prefer the look of their dogs with tails would be most upset to have the whole appearance changed, but the dogs wouldn't' notice one way or another.