If I can make just one wish for this product, it's that passengers and crew should
always carry something - either a carry-on luggage, handbag or backpack. I've never seen a boarding or deboarding process IRL where passengers are carrying nothing, in GSX it's as if they're one of those NPCs strolling down the street in GTA. It has been like this since animated passengers were implemented in GSX Level 2.
The pilot model already has a carry-on, please use that animation for the cabin crew and passengers.
For illustrative purposes, even the British Prime Minister is carry something when he deboards an aircraft: