It's funny that you bring this up because most of the utensils in a kitchen are meant for right handed people. Take ice cream scoops for instance. The little lever that is suppose to release the scoop of ice cream is on the right side and is meant to be used by a right handed person with their thumb. A left handed person would have to use their forefinger. And many left handed people will have difficulty trying to use this utensil because of this "problem". Also, think about can openers. Those are meant for right handed people as well.
As far as it goes psychologically, I don't know. I don't think there has been any studies that have gone on. But as far as feeling comfortable in a kitchen, left handed people just aren't welcome!