Not the gummits decision
First off, I truly believe that 13 is waaaay too young to be attempting a solo round the world trip. I also believe that parents who would let a 13 yo undertake such a trip are not being very good parents. But even more than I believe these things, I do not believe it is the gummits job to interfere.
Dream like you will live forever. Live like you will die tomorrow. ( James Dean )