Now I'd rather not do it, but for the longest time I thought it was the responsible thing to do, keeping the cat population down, etc. But in order to adopt, they insist on spaying/neutering, so I feel like that is out of your hands, they just come that way, nothing you can do about it. Just keep them from the vet the rest of their little lives. My vet convinced me to put my last cat to sleep--I wish I had never listened to her.