Whenever you "automate away" things that are actually a part of you, you lose a part of yourself by definition.

When you automate physical movement, you atrophy. That implies ill health and helplessness/lack of resilience should your automata fail.

When you automate intellectual movement, the consequences are even more dire.

Most people lead a very immobile life already, in both aspects. They don't realize the consequences, if everybody did the same.