Left handed right handed conspiracy

I had an idea that the whole theory that we only use a certain part of our brain and how the whole lefty fad has happened. If we train ourselves to write with our right hand if we were a lefty, why not learn to write lefty if you were a righty. Just a little practice everyday and I'm sure you'd become really god at writing with both hands. Maybe there are parts of the body that we can exercise to gain other little perks. I mean I'm sure if you tried you could learn to write equally nice from both handed writing styles. You might even improve your right handed writing. Anyway if we could apply this to another body part or function we could maybe indirectly improve it through focusing our use on that part of it. Wow this was good input by me I amaze myself sometimes. I feel like I'm a scientist.

I fail to see a conspiracy in your post.

What I see is your observation that practice can make perfect. One gets better at an action the more one does it.

ok Socartes you got me there