I counter real-world logic with the in-community reality that the marines aren’t held to a very high roleplay standard, and often open-carry their own weapons in their hands without even selecting the safety.
If marines aren’t abiding by their own SOP, and are still actively harassing roles that don’t have weapons easily available (does anybody have any examples?), then I can’t understand or sympathize with restrictions being applied to the most vulnerable members of the ship.