Sure, it's possible to kennel a cat, but it is really that nice? I don' think any animal should be kept inside and pampered, because that is not how it's done in nature. And I'm not going to lock my cats inside a coop either. I keep my dogs in kennels because they are hounds. If I had a pet dog, I would fence it too. But cats are not like dogs.
And as far as cats killing little animals, this post is about cats vs. snakes. All animals have natural instincts, and we control them as much as possible, but it's still in the animal's nature and there's not really anything we can do about it.
And I got on here to apologize for my pretty harshly worded comments I made earlier, but then saw your comment and had to say something again. I probably should erase it all, but I do feel like I should defend myself. I should never have said all that, because really, we're supposed to be focusing on chickens here. So yes, my cats do get snakes. And let's just focus on that, okay? It's not very nice for any of us, including me, to have taken this thread over. I apologise.