Perth airports have the most crap signage of all the airports in the world that I have ever been to. If by a major fluke people go to the right airport or the one that they’re supposed to be at,,,, also - there’s not a Jetstar sign anywhere - one has to hope one is at the right airport. Gate 19??? No signs for that until you (by chance) find gate 19. Perth Airpirt needs proper names and better signs - to, near and in airport