Why? Well, first of all, I'm mildly allergic to dogs. It doesnt bother me too much, but every now and then I'll get little itchy bumps all over my face/hands/arms after being with the dogs.
Also, my dogs kill cats. We have 6 inside cats. I do not want another massacre to happen again!!!! It was bad enough the first time Aurora killed 6 cats. Even if they didnt eat the cats, they would still eat the poop.
My mom would go absoluty nuts if we had that much dog hair hanging around. She thinks its bad enough with the little bit of cat hair.
My dogs do NOT like it inside. I've brought them inside to the basement on extremly hot days, to help them. They just sit at the door, panting, being extremly uncomfortable. When we got Dakota nuetered, he spent that day/night inside. Once he was feeling better, he wanted back outside pronto. It was kinda unfortunate he was feeling better at 4 am. I had to lay there and listen to him scratch at the crate, move around, and whine for 3 more hours.
You may not agree with this at all, but I can assure you one thing, my dogs recieve just as good care, attention, as everyone elses. Just because one keeps thier dogs outside doesnt immediatly make them a bad owner. You got to look at more then that.