It depends on how you defiine prisoner.
For some reason, I've been thinking about that stupid-ass Kamala Harris quote recently.
"You think you just fell out of a coconut tree?"
Fuck, she annoys me. But that's honestly pretty astute. I believe we are inseparable from our upbringing as it gave us the lens through which we view the world. Even when you go against the grain, you have to draw from your experiences to know what not to do.
So, is one a prisoner? Only so much as one's experience is a prisoner of oneself. It's a give and take. Everyone comes into this world unable to meaningfully impress upon it, and so we are formed by those initial experiences that we cannot choose or define. Those experiences inform our actions which inform our future experiences and so on and so forth.
At the end of the day, I think we're just truly reactionary beings. I believe we've just been reacting to the experience of the universe since we popped up in it. I've yet to see a single human creation that wasn't a reaction to a condition or behavior.
Mother Necessity, some call it. But I think we can see in other sentient creatures the experience, act, experience pattern as well. We're just fully sapient so we get to struggle with concepts such as fate.