Another thing I forgot about. Our vehicle is a 2019 Honda Pilot.
I usually get seven years or more out of a car battery. I charge them every month to make sure they stay in good shape even if I drive them often.
This Honda is on it's third battery in four years. The original battery was replaced by the dealer under the warranty and that one I replaced with a Duracell from Sam's that I paid for myself.
As usual, many times the real cost of this kind of "savings" is not figured in. Just with this vehicle brand and model that I drive has the extra cost and extra pollution of the two extra batteries and the cost to repair the vehicle starting system on many of the Pilots. Must be a big problem or Honda would not be extending our warranty.
Also, the cost of designing and building the auto shut off system in the first place.