I just thought of it because I received a gift (payment) from TP. And saw that he literally had Crazy as his middle name.*
But TP isn’t nuts. At least, his Chinese handwriting really looks cultured/ civilized and not at all like the scrawls of a lunatic. [Whatever TP chooses to type in English is a different matter.]
Then I had to write a message to remind family members. So I hastily wrote something in Chinese. And it occurred to me that my Chinese handwriting has substantially improved since my teens. Something I write quickly looks good.
Even while my English handwriting, formerly praised by teachers back in the days when penmanship was still highly regarded has become atrocious. I can’t hand-write English well now without making mental effort.
So is it possible that while typing too much can cause your handwriting to deteriorate, maybe it only affects the language that you type in?
I think I should address my question mainly to people like Iri, Mougrim, Hasu and Moz who might be routinely hand-writing in a different alphabet from the one that they type in. We also have Turkish members who might occasionally write Arabic but not use it enough to bother installing Arabic language support, etc.
*Or at least a homonym for it, in my language.