Yes,it's much more common to keep cats indoors in America. Just as anexample, in my area, here are the things my cats are in danger ofshould they venture outside:
- hit by car
- attacked by dog
- attacked by other predatory animal (coyote, fishercat, raccoon, bears, eagles, etc.)
- poisoned by spiteful neighbors
- lost or stolen
- fighting with other cats
I can't imagine willingly letting my cats face those dangers; to me, itwould be neglectful. I know that in the UK it is much more common forcats to be allowed to roam, and I do think that in many respects the UKis much more "cat friendly" than the US.
But even people I know that live in the UK won't let their cats outbecause they would rather see them safe and inside. I don't feel that Iam stifling any of my cats' "natural instincts". They are active,mentally stimulated, happy and healthy. Letting them go out isn't anoption, for the above listed reasons. It just isn't safe.
Again, though, it is a cultural difference.