Cats are great: it’s a fact determined by internet science. What makes them so likeable is that they’re cute, fluffy, make funny sounds… and that they’re also spontaneous assholes.
Every be-whiskered friend considers itself the king or queen of the castle (possibly both) and will act like it. However, unlike humans, who can be reasoned with (at least in theory), cats are really something alien. Plus, they don’t speak English, and nobody has come up with a cat dictionary, yet. So their actions are kinda cute, even if they don’t know better.