Uh, IRL I have leash trained my cats and I take them on walks. I wish there was a pet stroller in Cats & Dogs and the ability to take cats for walks.
I just discovered there is a mod for walking cats, but that is a huge miss for this pack. Everyone should leash train their cats. It helps them learn their neighborhood and not get lost. It allows for them to get exercise, and they are happier.
Anywho, I might try this mod.