Because cats are smart, special, don’t get into trouble and 💯 athletic. They don’t need to be pampered with a park.
Dogs are incompetent without training the stupid out of them. Even when you do its not good enough. Dogs need a park because they are dangerous and have tendencies to roam away and attack people who are minding their business or people who hate dogs.
Dog parks are just away to hide the errors of the dog because they are dangerous when in public space.
Then you have the mentally ill dog owners who will not hold any accountability when their mutt causes conflict.
Dog parks are for worthless mutts and their mentally ill owners. It helps them avoid conflict because with out a dog park. Dog owners would allow their mutt to cause conflict.