Teach your kids to type and provide a lot of time (years?) to practice. Many children with dyslexia also have dysgraphia, which is a specific learning difficulty in handwriting. For some reason dysgraphia does not effect drawing, violin playing, building with legos or typing. Another one of those things that I suppose I should read about, but at this point I’m just going with what works.
My kids use the program Typing Instructor. I like that I can manage the words per minute goal to give them a sense of accomplishment and prevent frustration.
And when frustration rears its ugly head, tell them stories about your typing class in high school….with real, actual typewriters. They will look at you like you landed here from another planet when you describe the white-out sheet you had to use when you made a mistake. It will make them quickly appreciate typing on a computer.