But I am a cripple when it comes to CW!
The Army taught us CW using encrypted groups which you cannot copy in your head (unless you are really talented) And you certainly did not want to flunk out or radio school and be sent to infantry training during the RVN era.
I still operate a little CW today but not enough to stop the habit of copying it all down as it's sent to me. And the older you get and the shorter your memory gets sometimes it's good to have that critical stuff written down anyway.
Old habits are hard to break.