Johnstaf
Ok, you somehow start to get the picture. Baby steps, I understand. Take your time.
So, you say… people have troubles im their writing hand covers (esentially would smear the ink or graphite) what they have just written. That is correct observation! Well done!
Yet… and here is the "mindblowing" part (not really) right handed people in the East have been hand-writing for ages\centuries from right to left before the modern digital devices came into picture. One can only wonder why would they (hebrew, arab, persian, turks – before Kemal's writting reform to use Latin script – and so many more) even think that writting from right to left was a good idea. INteresting, isn't it. But they did. They learnt, they practiced… and I can assure you non of them dared to flip the direction – humans adapt!
Just like left handed (european languages) writer write from above or tilt their papers to almost 90° counter-clockwise.
https://youtu.be/2i4CRw3DG-s?si=hyjzj50u_pV-x0Yl&t=206
So what should such left-handed (european lang.) writers do to make it less stessful on their hands?
Well one famous left-handed person did exactly that. Leonardo wrote most of his work with as… please read:
https://www.mos.org/leonardo/activities/mirror-writing.html
What an imbecil, right? How dare he! He was wrong. He could not write and was lazy to learn the correct way! He might have been ambidexterous but who knows. Same some say about Mozart and Beethoven (that they were rather loft-handed but probably ambidext.).
Do not worry, we'll get to the piano…
Yet, not many left-handed people could afford learning a "mirrored" writting. It does not matter today (well since computer\printers were invented) so no need to force them learn Leonardish.
The point is, hypothetically if I, let's pretend am an ambidext person (writer), would like to use my left hand to write in my european script, I have to do it the Leonardo way. Otherwise my abidexterity for writting with my left hand will be extorted, forced, will bring me fatigue, unnecessary stress upon having to uncover what I have written – even if the ink is instant dry and not susceptible to smearing!
Ambidexterity is only aplicable to non-sided activities for example hammering a nail, tossing a ball.
The moment you include directional sequence your ambidext. will have to be extorted to comply with the direction because either hand\fingers will have to go in the same direction.
Pianist are forced to learn that way – it is not ambidexterity. The poor one directional layout of the piano notes extorts dexterity for one of the hands. I proved abouve why corrent piano is suitable for left-handed people using example with left-handed guitarists as notebook example of handedness in the music instrument making.
Certainly, practice makes perfect. You can force yourself to play a right-handed guitar despite the fact being born a left handed person. Kiko Loureiro (a quite famous virtuoso metal and fusion guitarist) did, because he had no choice and no access to other instrument but a right-handed guitar. Hear the man himself:
https://youtu.be/cpZMhgSC9CE?si=MuP1D4dqEh7Q5VCR&t=332
(watch it from 5:32 to 6:44)
The man was forced to learn the "right" way (uh, the pun!)
Isn't it weird how humans can adapt to discomfort (and most om the times not even realising it!).