Ventilation: Good air flow is a must to keep smells down. The gap helps odors escape. WC Portables remarks, “The door-floor gap whisks away bad smells.”
Deterrence: Public bathrooms can see some bad behavior. The door design cuts privacy, discouraging misdeeds. WC Portables adds, “Shorter doors keep the queue moving and stop bad behavior.”
Escape Route: If the door lock fails, the gap lets you crawl out. A user said, “If the door jams, you can crawl free.”
Occupancy Check: The gap shows if a stall is taken, no need to knock. ToiletPartitions explains, “The gap helps tell if a stall’s vacant or not.”