You appear to be violently agreeing with me that there is a point to giving kids computers to use gdocs.
That in itself is a useful skill, but I don't recommend it as a coping mechanism to avoid physical pain.
Don't get me wrong, I do think it's bad that writing things by hand is becoming more and more rare all the time. In particular, handwritten letters and notes have an extra bit of "personal touch" to them that can make them very valuable to the recipient.
However, from the time I was in High School to today I would never want to be required to write a paper, well, strictly on paper (from the beginning). I want all of that ability to quickly edit at my fingertips.
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.