They're clean.

Unlike dogs, cats clean themselves. They're extremely clean and hygienic animals, cleaning themselves by licking their fur. This can lead to fur balls, but it's much easier to deal with than having to clean dogs.

They use litter boxes.

For those who don't have the time. cats don't require walking every day like dogs. They can just poop or pee in their litter boxes, and it doesn't take a long time or great effort to potty train them. This can lead to far less stress and time that a dog would take to train.

They're quiet.

I love dogs just as much as the next person, but certain dogs, especially Beagles, are known for their howling. Howling and barking may not be that big of a deal in a house, but in a college student's apartment, it can be highly disruptive to neighbors and cause a noise complaint. This is the last thing a stressed college student wants to deal with.

They purr.

Nothing is more relaxing or comforting than hearing a cat purr. It's both soothing and calming. Studies have even shown that cat's purring helps in healing bones and tendons due to their vibrations.

They're small.

Cats are smaller than dogs (usually) and therefore are perfect pets for apartment style living. Because they're so small, they don't take up much space and are easier to manage (despite their difficult personalities).

Reduced stress and anxiety.

This poses true for dogs as well, but owning a cat can reduce stress and anxiety. Having something furry to pet and cuddle can relieve stress (something every college student deals with). It's always nice coming home to a furry companion.

Finding a partner.

Although this may not seem intuitive, studies have shown that women are attracted to men who have cats. Cats are generally more comfortable around women, so when a man owns a cat, it's highly attractive.

Sleep better.

Studies have also shown that owners sleep better when they sleep with their cats. I personally highly enjoy it when my cat sleeps with me, curling up at the end of my bed. It's nice having that companionship, and my cat won't be annoyed by my sleep-talking like a human would.

Boost immunity.

Since cats have lots of fur and dander, owning a cat can boost someone's immunity. Exposure improves one's immunity.

Less effect on environment.

I love dogs very much, but studies have shown that owning a cat leaves less of a carbon foot(paw?)print on the planet. They generally require less food and are more likely to eat fish products rather than beef, which can benefit the environment.

They catch mice or other vermin.

Cats are famous for their mouse-catching antics. This can be beneficial, especially if you suffer from mouse invaders or other such invaders.

You'll never be bored.

Cats are notorious for being troublemakers. Know that if you own one of these little critters that you'll never be bored with them around.