Well for one I would be on the end of calling the PT fucking dangerous given what they can do, so if requests were being taken, and I assure you real life is not as romantic and black and white as Persona 5 sadly paints it and all it presents, then idk I would call them poopy heads or something, tell em to eat dirt or whatever
Reason is that teenagers are volatile dumbasses who do not know better, and most people don't grow out of it
That said, in canon it's 100% guaranteed there's more Persona users all over the world, the collective unconscious' reach is that of all humanity present and gone, so really it's just Atlus usually keeping themselves in Japan as a setting