One comment I've gotten several times about this song is that it doesn't make sense to sing a song about going out into the world and call it home.
To me, it makes perfect sense to do that.
I grew up in a lot of different places, and that means that my idea of home doesn't look like a lot of other people's. Home is not a single place to me, but many. Home is where the heart is, and my heart is all over the world. I get the feeling that there will be lots of other places I call home throughout my life. That's exactly what this song is about. It's about going out into the world and making it your home. It's about learning to be comfortable no matter where you are.