That's a great point, though since I have kids I can only dream of a 2 door car for a while. It is technically possible but hard to schlep with them back there when they are little. So I think of it more as a safety scenario in my present life situation.

Expectations and norms are clearly different than they used to be a few decades ago. When I was a pre-teen in the late 80s, and my family got an SUV, it had seating for five passengers like modern vehicles, bucket seats in the front and ones that folded down in the rear...but four doors were not an option. In fact of the several competitors only one offered rear doors.