I agree strongly with you on this. None of my cats go out and never will. There are shots for Leukemia and Feline AIDS but they are not 100% effective. Having a cat fixed will help prevent millions that are put down every year. There are also many predators that will go after cats; dogs, coyotes, foxes and if they are kittens, hawks. Cats are small creatures and while they have claws for defense, they are no match for the many dangers out in the world. Mine have access to every window in the house and full run of the house and that is enough. Half of mine were born in the wild and it hasn't bothered them to stay indoors, they can get used to it. Out here in the country lots of people have barn cats and many of them end up dead on the side of the roads, a fate none of my cats will endure..