I also have physical problems writing by hand, and it led to me handing in a lot of unfinished essays after running out of time in exams. If I hadn't gotten a special dispensation to type my exams later on, I wouldn't really have anything to show for my education. Before my issues were diagnosed, my teachers and parents felt that it was due to a lack of effort on my part and that they could punish me into writing properly, and I feel that having access to Chromebooks is worth it if it even spares one kid from having to deal with that.

On a computer I can easily rewrite the same phrase 10 times, reorganize a sentence for the best sounding flow, move or remove whole paragraphs multiple times, until I am satisfied I have said what I wanted to say in the best way I know how.

I can save off any number of possibilities and compare them side by side.

Also, none of this prevents me from spending 30 minutes beforehand thinking about what I am about to write. Although, I will admit, even if I do that I am likely to have at least a text editor open to jot down a few notes as I think about it.

I do agree, however, that the up-front thinking is a very good idea.