I find this cats are independent and less social than dogs thing really silly and stereotypical. Immature thinking!

Of course cats are social. There is already ample evidence of this. For example, feral cats tend generally to live in colonies, often pretty large and comprising extended families. In these feral groups, female queens who have kittens will form 'nurseries' where they share the task of looking after a group of kittens of similar ages. Thus, feral female cats SHARE childcare responsibilities. This is hugely social behaviour, way beyond that seen in dogs. In many cases, house cats can also live in groups, often with several unrelated cats together, and getting along with each-other. My own six cats are perfect examples. They are of various ages, and apart from one pair of brothers, are unrelated (though another two came from the same previous owner). Despite age differences, gender differences, being different sizes and breeds, they have bonded really well. They eat and sleep and play together, and actually call for each-other. This calling occurs when one of them runs off and goes missing from the other cats. They groom each-other, and snuggle up together to sleep. All of this is highly social.

My cats are evidently attached to my husband and I. They ask for attention and cuddles by paradibg in front if us, or by brushing against us or butting us with their heads. If we go out for long periods, they are eager to interact with us when we rerurn, and we can even hear them calling for us when we open the door of the house. They will always be on the windowsill looking for us as we rerurn.

As Frank rightly points out, there are already many testaments to the social nature of cats. Such as "Streetcat" and similar books. Pet therapy schemes equally use cats and dogs, showing cats are social. Famous cats such as Grumpy Cat and Lil Bub, both Youtube sensations with huge followings and merchandise to boot, must be evidence of feline sociability, as both cats did meet and greets with their large numbers of adoring fans. Also, in Japan, there is a trend for railway stations having famous celebrity cats, some of which even wear tiny station master uniforms. If in doubt, Google it all!

As to dogs being more social? It is all a bit stereotyped. Hachiko may be proof, bug then again, this dog's behaviour of going to the starion could just be evidence of learned behaviour and the force of habit. Maybe the dog just got into the routine of going walkies to the station at a certain time, and could not get over the habit even after the owner died? This does not prove, or disprove, attachment conclusively.,