That is a very good point, but it only works of the world is somewhat open to immigrants. I migrated 3 times in my life, starting from practically one suitcase each time. I'm very lucky to have ended up in times and countries which allowed me to stay and to contribute to their society. Sadly that seems less and less a given.
I did plan ahead, the plan was to get my jacket in between when everyone was walking out of the church to gather at the graveyard.
Also if we are nitpicking then everyone can talk to god in the catholic church, including the priest after he listens to all my sins, but god for some reason only responds to the prophets.
Anyway, those nuances are for the scholars, not for a teenage altar boy.