Real cat-fights are N-A-S-T-E-E-E and vicious.
Play wrestling fights between cat siblings and shared home cats are fun as heck. They have a ball and the natural wrestling abilities are fascinating. You get to see why the ancient martial arts masters studies animals to learn fighting skills. They use deception and distraction to "get inside". It's great.
Now two or three pussies going at it… pulling hair, scratching, slapping! Pure entertainment for the adult male!