According to the Geneva Convention, refugees don't need a visa or travel documents like passports to travel (to make it purposefully more difficult to mess with

According to the Geneva Convention, refugees don't need a visa or travel documents like passports to travel (to make it purposefully more difficult to mess with persecuted people, like Germany did by stamping a "J" in the passport of Jewish citizens so it would be easier for countries who didn't want them to refuse them). I have fears that widespread adoption of systems like this could make air travel for refugees inaccessible if governments really want to.