I don’t target an age, nor do I want to FIRE asap.
For me, it’s a seamless and smooth gradient: The more money I have, the less dependent I am on paid work, the more options I have, the more relaxed I become, and so on…
Money is a freedom machine. But it doesn’t go from “trapped” to “free”, for me. 
Let me quote Walter White: “I have spent my whole life scared - frightened of things that could happen, might happen, might not happen. What I came to realize is that fear, that’s the worst of it. That’s the real enemy.”