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.
I can do it as fast after years of valet as a teenager, and its easier to make sure I'm centered since I can see the lines in my mirrors.
It's easier and quicker to get out, you never know if reversing out of a spot is going to be feasible and the visibility might not be as good when trying to exit.
True, but if you see the lines in your mirror, you have them adjusted wrong! Try adjusting them to see your blind spot. It takes a while to get used to it but it's a game changer.
Oh, that's cool! But one should still cover the blind spots with side mirrors instead of seeing what's behind you, as you already have one that does this!