Don't get me wrong, I don't dislike kissing. I like kissing people that I love. I sometimes will just sit there kissing my baby for like twenty minutes nonstop. (It's like kissing a peanut.) But what I don't like is kissing people as a greeting.
I can deal with shaking hands. I think shaking hands is a good greeting (except in the field of medicine, where is probably spreads massive germs). I can deal with hugging, I suppose. But to me, it just seems distasteful to put your mouth on someone you don't love (or lust). I wouldn't even want to kiss my somewhat close relatives such as aunts or uncles. It just feels so fake and awkward.