Salt? Is It Just Me?

It grosses me out to see people salt their food before they eat it. I may have posted about this before, but it still boggles my mind. I do not salt anything after it has been cooked except baked potatoes and boiled eggs. Why are people adding all that salt? I don't even own a salt shaker. My brother brought a salt shaker to our beach cottage this past May because he knew I wouldn't have one, and almost everyone, except us, used it. When I told my neighbor that I add fresh ground pepper to the mayo when I make a sandwich, she said she also adds salt. I don't get it. I have kosher salt that I use for cooking and that's it. I feel insulted when people salt the food I have prepared. It was salted already!  Is it just me? Does everyone salt everything?