My dad is nominally right handed, but does those things, among others, left handed. He does small fine motor skills left handed and strength things right handed. But he's old enough to have been dissuaded from writing with his left hand in school, so it's possible he's actually lefty.

I can do many basketball things (free throw, layup, passing) with my left hand as easily as with my right, and I comfortably use eating utensils with either one.