To elaborate and maybe this will get some likes... the reason for the above is that exiting a spot is faster and safer when facing outwards. It is much easier to see cars and people coming and/or in the way.
And to elaborate why we are still disagreeing...
Your comments about it being easier to see cars and people coming would have been accurate through the 80's and 90's before backup cameras were a thing. You would have been absolutely correct. BUT all cars are required to have backup cameras now, and it's not just equal. Rear visibility with a backup camera is actually far
better than seeing directly forward because of the position and angle of the eyeball/camera.
Have you been in a parking garage, where there are big trucks or SUVs parked next to you, and you are backed in and want to pull out forward? You have to get a direct line of sight from where you eye is, sitting in the driver's seat. That is a pretty noticeable 6 or more feet back from the front bumper of your car. When you put the car in drive and try to look to see if there is anyone coming, you can't see anything but the side of the truck because of the bad angle from the cabin to see past the end of the vehicle. You have to blindly creep forward, sticking the nose of your car out into the aisle several feet because you get any chance to see whether it is clear or not. That is
not safer.
With backup cameras, the camera is not inside the cabin in the middle of the car where you have that bad angle; it is at the end of your car, at the back bumper, which is right there on the aisle. And with backup cameras having that fish-eye lens setup, the camera shows you the 180 degree view both directions down the aisle when you put it in reverse, letting you see if it is clear before you ever begin to move the car. That
is safer.
I know this is kind of weird, where traditional, long held "truths" that people knew get changed by new technology coming along that undoes them.