Isn't it just

Unless you're ambidextrous.

I can hold a pencil properly with my left hand but I can't write using it, and sometimes I practice writing using my left hand just in case I broke my right hand!

Well for me it's easy, I mean I only have one hand sooooooo

I find it weird that my left hand is retarded at everything except changing gears in the car, then its a machine!! (I'm an Aussie, RH drive)

I'm trying to train my left hand to write and stuff
It's going pretty good

IKR