Hmm..Not such a idea. It makes us sloppy if there is too much automatic correction involve. I am already having problems remembering simple things like my phone number as I can look it up on my smart phone. I would even suggest that my capacity to remember things would have been a lot better if I had lived before the invention of smart gadgets. My spelling has also suffered as a result of this automatic correction.
How can it be bad to stop remember everything by thought? It makes total sense for me to have my phone number written down so I don't have to remember it. I value my brainspace more than that.
So stuff that can be automated should be, so you can focus on what matters, the content of your words. Not your spelling of those words.