If a gornment changed policy to make houses depreciate like cars, it would not be a government for long.
And the car analogy is n9t fitting, unless we talk about cars bundled with the parking spot. But then they would not depreciate that much, and the banger with a parking spot in Manhattan would cost more than the Ferrari that could only park in shitsville.
The property a home sits on and the property a car sits on would depreciate the same.
But in reality neither has to depreciate, just stop growing at these insane rates. Below the cost of inflation, until the average worker can afford a home again.