What's the appeal of cat ears?

After finishing Strike Witches, I was stuck on the way that, when performing magic, the girls developed cat ears and tails for no apparent reason. The Strike Witches producers knew what decades of anime has already confirmed: cat ears on

Norwegian Forest cat ear tufts—explained in detail

Cat Ear Wax: What You Need to Know

What Your Cat's Ears Say About Their Emotions

Ear Structure and Function in Cats - Cat Owners - Merck Veterinary Manual

How Many Muscles Are In A Cat's Ear? Plus What Can Cats Hear?

How to Clean Your Cat's Ears?

How to Get Rid of Ear Mites in Cats, Huntersville Vet

Signs of Ear Infection in Cats, Davidson County Vet

Cat Ear Language: How Cat Ears Show Their Mood