The refrigerator door panel isn't steel either, it's some sort of foil glued to a thin wood panel. That doesn't detract from its usefulness or appearance, but it does make the panel less immune to damage. Don't stow anything near it while traveling, and make sure the door's travel latch is tight. Someday if I want to spend the money I'll switch out the plastic sink for a steel one, but for the present it all works just fine. The triple-power fridge can freeze your stuff, so watch it while you camp. I had to turn ours down twice or more to keep lettuce from freezing. Ours works best on 110v or on gas; it does ok on 12v but doesn't cool as aggressively as on either of the other two power sources.
It's never too late to have a happy childhood!
Lee, WU0V, and Courtenay, N0ZDT
2011 Rockwood A128
2000 Silverado 1500 pickup
60W solar system
2000W inverter generator