When people let their cats go in and out as they please they really don't have to worry about their cats getting enough mental and physical stimulation, I think. They take care of that themselves. Playing with cats daily takes up time, and buying toys is more expensive than not buying toys. That's really all I meant by saying that!That's odd, I have had cats for over 30 years and never once felt it took more time and/or effort to keep them happy inside. I also never treated them like an ornament. If anything, my husband and I cherish our cat(s) but have consistently given them both mental and physical stimulation. Personally I feel the cat bonds even stronger when they are given one-on-one playtime. I have seen too many cats, (including our neighbors), get injured, endure harsh outdoor elements in inclement weather, become prey and/or get into cat fights.
I respect what you feel is best for your cat and hope we can agree to disagree.
My cat is indoor 99% of the time and only goes out for walks on a leash because of an abundance of reasons. In no way am I saying it's a bad thing to spend time with- and fill the needs of- your cat, I'm just saying that it's easier when you don't have to worry about those things. The list of things that you -do- need to worry about when you let them out is endless though - haha!