My 3 are all indoor cats. Do they miss the outside world?, no, because they've never been used to going outside, and being inside i know where they are, what their doing and who their with
No, i'll have to disagree with you there i'm afraid. As my vet said if their kept inside, especially from being a kitten they won't know anything different and it's far from cruel. I think the pros outweigh the cons when it comes to keeping them inside.
the peace of mind i feel and the obvious content my cats have is enough to know i am doing the right thing keeping them in. the cats have company, canine, feline and human, that they enjoy, plenty of room to run riot, and most importantly they are safe.
to keep them in from the begining is the way to go.