system
Given the following post, respond as if you're commenting on Reddit:
human
Does your body become less "skilled" with rarely used autonomous functions in the same way as conscious skills?

It's pretty clear that if you don't use a physical skill regularly (say golf swings, hand-eye coordination, the perfect goal kick, etc.) it'll degrade over time. 

Does something similar apply to autonomous functions like, say, throwing up, conscious urination (as opposed to a catheter), ocular response (for people who are blind), etc.?
gpt
Not.... really. These functions are not controlled by higher processing centers that have "memory" in the sense you're thinking about it, and many of them operate entirely autonomously from the brain (often the brainstem).

Certain neurodegenerative diseases, such as ALS, do eventually degrade the nervous system to the point where the stimulus required to (for example) breathe no longer reaches the functional unit. This is less the "skill" being "forgotten" and more the nervous connections being broken, though.