My current car is my first car that has a backup camera, and I actually find it much easier to see backing out of a space with the camera’s wide field of view.
Driving forward, especially in a sensible normal-sized sedan, your view can easily be blocked by someone’s giant Suburban on your left and Billybob’s overcompensating pickup truck on your right, both of which always come with shit parking jobs. Your best chance is to very slowly inch forward and hope any oncoming drivers notice the front of your car moving into the lane before your windows clear the taller vehicles.
But the backup camera sees 180 degrees from the bumper, so you can always see traffic in both directions well before any part of your car might get in anyone’s way.