I have to stretch your analogy in weird ways to make it function within this discussion:
Imagine two people who have only sat in a chair their whole lives. Then, you have one of them learn how to drive a car, whereas the other one never leaves the chair.
The one who learned how to drive a car would then find it easier to learn how to run, compared to the person who had to continue sitting in the chair the whole time.
You made the analogy worse. It's nonsense. The original analogy is far better.