To me, it seems objectively easier to pull into a parking space forward and then back out of the space when you are ready to leave. You don’t have to line up with the lines while driving backwards, and it’s easier to keep from hitting other cars as well. So why back in? To me, the only advantage I can think of is that you can get out quicker, technically.
Edit: I do not need driving instruction, just wondered why. The reasoning.
Getting out quicker is always good.
But the main reason, there isn’t much traffic where you are backing in. But backing out sure as hell will have both passing cars and people assume you see them perfectly well. I also have no depth perception so the ass of my car is like a big unknown. So backing into a spot is easy because I can just use the side mirror to line up my position relative to there cars. Only issue is how far back I can go. Now I got a camera back there, and everything is much easier.