Because your front wheels rotate, not the back wheels, it's much easier to get into proper position when parking backwards especially when you're between 2 other cars and the space is small.
So, in a busy parking lot (classically a grocery store lot on Saturday) fancy parkers make others wait on them while they park. Normal parkers have to wait on others when they leave.
Reverse parking is the only parking method taught in the UK (and thus the only one you're tested on).
The reason you should use this (unless the car park is setup for forward parking bays) is that it's far, far safer.
Forward parking means you need to exit by reversing, functionally blindly, into traffic or children walking across the rear of your car.
Reverse parking means, when you exit, you can see cars wanting to be past, or children now walking across the front of your car.
And no, you're not "trading" safety by reverse parking because, when you park, any obstacles would be directly behind you, as opposed to at an angle.
The rear wheels pivot!!
This is also why the quality of the rear tires is far more important - the fulcrum, or pivot, sees the most stress!
On top of the Honda Prelude, there's also the Porsche 911 GT3, the BMW 7 Series, Audi Q7, Nissan Skyline GT-R (R32, R33, R34 had HICAS), Renault Laguna (only in some European markets), Acura RLX (P-AWS), Lexus GS and LS, Infiniti Q50 and Q60, Mercedes-Benz S-Class, GMC Sierra and Chevrolet Silverado, and then to round out the list, the Lamborghini Aventador and the Ferrari F12 Berlinetta.
All of those feature rear wheels that pivot.
Easier? Do you have some kind of system/algorithm that you use, because I find backing in harder than driving in.
Reverse in full lock.
Use your wing mirrors to get the side of your car parallel to the white lines.
Adjust as you go.
Practice makes perfect.