Don't underestimate the advantages of automaticity. The picture below gives you a little idea of how much easier it is when skills become automatic. Look at all the brain regions (frontal - executive, parietal - imagery / representations, and more) that don't have to work as hard (hot colors: increased work, cold colors: less!) when the task is learned.
When academic or motor skills don't become automatic, a whole host of problems present themselves. Dyslexic students who have trouble remembering how to form letters automatically, can overload with essay writing, taking notes, or math problem sets (dysgraphia). If math facts, spelling or grammar conventions aren't known to the point of automaticity, then even very intelligent students can find themselves overwhelmed by higher order activities based on these building block skills. As a result, if we don't look for opportunities to accommodate, we may never discover a student's creative or critical thinking strengths.
For us adults, automatic expertise helps us carry out most of our activities of daily living and multi-tasking. It's a beautiful system because it allows us to rest while still getting plenty of work done.
The Neural Correlates of Motor Skill Automaticity