Being able to write with both hands is a very important skill but we generally don't take it seriously. Some people, like you, have the skill naturally, but others can develop it with constant practice.

I have a friend who's already teaching his 5-year old kid how to write with both hands. When I asked him why, he explained that nobody prays for accidents or diseases, but shit happens. What if an accident happens and one hand gets cut off or amputated and it is the hand that is used to write. The person will now start learning how to write with the second hand.

Why not learn the skill now?
Being able to write with both hands is a skill that everybody should learn, and I'm already learning it too.