Earlier quoted context omitted.
The vast majority of people don't turn around around when they reverse. They just rely on their mirrors. Cameras are a mixed blessing. On the one hand these people are getting a better view, on the other even more people have gotten lazy.
Backup cameras are increasingly the norm as older vehicles go out of service. But as someone who was exposed to a variety of different rental vehicles last week, it's increasingly hard to know what features a given vehicle has exactly, which are enabled, and how to use them.
It's a habit you quickly forget. You're just walking away waiting for the beep. No beep, you have to press the fob.
I do also hate when dealers advertise the backup camera as a security feature. It's mandatory, you don't advertise seatbelts or airbags (unless there are 37 like in a modern Mercedes).