I write right handed, kick left and right footed, shoot left handed, use tools left handed, kick on a skate board with my left foot, throw right handed, but minus that my left hand is dominant and there's never been any issues for me other than having a whole lot of tests done when I was about 7 haha
I'm a gymnastics coach, and I've noticed that a lot of left-handed gymnasts do gymnastics righty, and vice versa. I actually took a survey once, to see what was more common - being dominant on the same side as your handedness, or on the opposite side of your handedness. The results: it was about half and half.
Handedness and your stance on a skateboard are unrelated.
Its the opposite for me. Its normal