I am right handed and right bodied in general. When I played baseball, I was able to switch hit, because I really did not have a clearly dominant eye. I could choose to dominate with either. I used that skill to advance in target shooting in later years.
Hardly anything is more upsetting to a baseball pitcher than having a batter switch sides after one pitch, when he already has a plan to strike that batter out. My coach used to have me do that quite often, because I could usually get on base either way.
My right hand is maybe half again stronger than my left. My left is quite dexterous, but I have to assume, not used often enough to develop the same muscles as with my right. Never had any luck trying to kick with my left foot. I am totally right footed as far as kicking goes, even though for years I kicked a bag of sand as an exercise with both feet, alternately.
Since my hip replacement on my right side, I am sure that my left leg is much stronger still, but I am beginning to step first with my right again and I can kick fairly impressively into my old bag with my old and dodgy right leg these days. Can't work out like I used to but getting better all the time, I think.