I don't agree with docking....
but
if a tail is causing problems for any dog then of course it needs to be docked
but
not every working dog needs to have it done 'as a matter of course' because of what their 'job' entails
many working dogs - though not enough imo - have undocked tails, and many other gundog breeds don't have/need docked tails
So may dogs are docked and they needn't be
and i for one am pleased at the ban ( exceptions only on vets' advice )