If that’s what you enjoy doing, then sure, it’s fine :) Coding is fun, i do it as a hobby too. Probably not on your level though. But you’re most likely not the absolute average working-joe.

And yes, retire as soon as you comfortably can. Did in my early 20s, would never go back. Tried once or twice for some months working, just because it sounded like a nice gig. Got bored quickly, left before I even learned some names. That was 3 decades ago or so :) Even if you love the job, traveling is probably better. And doing what you love for yourself and not for the benefit of others is even better too.