I can't think of how to test that conclusion in an ethical way.
As a child, if I had had the vocabulary and concepts for it I would have identified being left-handed as a significant disability restricting my life and limiting my success in school. Nowadays, I rarely think about it. Some of that is because life isn't so right-centric nowadays (I rarely need to use dull scissors belonging to other people, I mostly type instead of write), but I also got better at things that used to bring me to tears (a right-handed can-opener, a right-hand-only potato peeler, for example). And how can I say whether I got better because my small muscle control just improved as I grew up, or whether it was because of the 6 weeks I spent with my left arm in a cast.
no subject
As a child, if I had had the vocabulary and concepts for it I would have identified being left-handed as a significant disability restricting my life and limiting my success in school. Nowadays, I rarely think about it. Some of that is because life isn't so right-centric nowadays (I rarely need to use dull scissors belonging to other people, I mostly type instead of write), but I also got better at things that used to bring me to tears (a right-handed can-opener, a right-hand-only potato peeler, for example). And how can I say whether I got better because my small muscle control just improved as I grew up, or whether it was because of the 6 weeks I spent with my left arm in a cast.