After looking again at your signature, I realized you were in Canada. I think the process is a bit different there. I would pursue having him assessed (by someone who is qualified to assess), and see what they recommend. I did some more reading, and it seems that people who have dysgraphia can have other challenges like ADHD and Dyslexia. I think it would be helpful for you and your son to get him thoroughly assessed.
I do think the keyboard is a good alternative for when he gets older (or depending on how things play out, maybe certain times during the school
Day). I would just be concerned of not having the school work with him, to give him an opportunity to learn to write.
The other thing you might want to address with the school, is alternative testing for him. I'd be concerned about him not able to accurately reflect what he knows because of this. I don't know if that would mean he should keyboard his answers, or express them orally, or ???
Good luck with everything!
