Objection, Your Honor! Our first cat, who even came to us on her own, was an absolute homebody!
There are also specimens that like to bathe from time to time. But that is rather the exception. At least as far as I know. Ours certainly aren’t particularly interested in their outdoor litter box.
If you weren't so picky about everything else, I would have understood that. But now that it's about your cats, suddenly other people are supposed to just accept everything with the reference to "Well, they're just cats, not my problem..." It's quite interesting.