What a great idea! We Americans tend to think of Britain as an animal-loving country, and this is a great example. If people who have kids get time off to take them to the doctor, or take care of them, then people who have animals should get equal time off to take them to the doctor or take care of them.
I'm just thinking of the times when your horse colics (colic can kill) and of the time and effort it takes to walk him 'til the vet comes, or to load him on the trailer and haul to the clinic. Life or death.
And yes, it makes sense to adopt an animal during your vacation time. But what if an animal needs rescuing and can't wait 'til your leave comes up?
People are always preaching about responsible pet ownership. Well, part of being responsible is being there when we're needed ... by our pets.