When I was a young person with executive function issues (late 90s/early 2000s) voice to text was a lifesaver for my ability to write coherently. I found it much more natural (even then) to "write" by speaking my mind to a computer than to struggle to focus while typing slowly. It wasn't until I was older and using IM heavily as a social outlet (which was much more in the "bursty" configuration that works well for my brain) that my typing ability caught up with my pace of dictation.