Also, it's a truth universally self evident that poop stinks. "Poop still stinks and you still need to clean the 'litter box,' aka toilet bowl," Bays said.
Dr. Barrack agreed: "Unfortunately, cats can't be taught to flush so the smell will remain, and eliminating odor is what most people assume will be the result of teaching cats to use a toilet."
But more seriously, cutting the litter box out of your cat's life could have a backlash. "Denying your cat the ability to be a cat can cause other behavioral issues," Bays said. And Dr. Barrack pointed out that cats can be territorial. "This can be a problem if there is one toilet in the household," Dr. Barrack added.
Still, there are some cats who will use the toilet all on their own, Bays said. "That's their choice, but I'd still give them a litter box option as well."
And why shouldn't you give them all the options? They already rule your life - and we love them for it.