writes:

It seems natural for a cat to want to venture outside, and to me it's
cruel to keep them inside (unless they're not interested).

Cats are domesticated. Most do not mind being kept indoors. Between
my own cats and my family's, I've known 11 cats and all were indoors and
all were happy.
I truly feel it's cruel, at least where I live, to let my cats out.
We live so close to the "wilderness" that at nights I hear the coyotes
howling, so there are definitely predators. We're right next to a busy
highway, and I couldn't bear knowing I let my cat out just to get run
over on the road. There's a lot of crazy people in the world who think
it's fun to torture animals. Add disease on top of that and there's
four extremely powerful reasons to NOT let your cat outside.

Stacia