Another explanation was so you could protect your belongings while coach was in service but that doesn't make sense since it's the same key for all of the doors and storage compartment doors can be opened via Spyder panel without a passcode.
Further .... a key from another Tiffin may open your doors as well ... someone's not so logical idea, just more cheapness. My keys worked on a neighbour's Phaeton, so I assume some other Tiffin keys may work on my cabinets as well. Don't think it was a coincidence but maybe ?
2019 Tiffin RED 33AA, ISB6.7 360 HP
2021 Buick Encore GX Essence AWD
Blue Ox, Brake Buddy Select 3