Well if i remember right i used to use my left hand more often than my right when i was a kid but i learned to write using my right because i thought i should be like everyone else.
Now, if you exclude writing and using pc or phone(which are the things i want to learn) i use whatever hand that is more efficient or both needed.
Or maybe i judt want to convince that to myself to feel special which i may find the answer for if i do that.