and I'm not sure where I indicated as such
You didn't really indicate why you need it or what it will be used for, which is why I asked for the explanation. I wondered if maybe you were disabled and need it to see where you are unable to see, which would require a different camera to what abarth requires, ie a reversing camera rather than a parking camera.
to aid in gauging the perception of appropiate car spaces and to help speed up my experience in driving without such accidents. I would presume a lot of people reverse in to walls, clip cars and more every day due to wrongly judging sizes or general lack of experience.
Added to that, my work wants me to start driving their vans, so really need to nail my spacial awareness as quickly as possible due to the sheer size of the vehical involved and unfortunately, driving around looking for a clear spot with no nearby vehicals 'to be safe' doesn't quite cut it in a working enviroment.
A small 2 dimensional screen showing a small part of the 360 degree field of view is not going to be much help for general reversing, and one showing 360 degrees would have too little detail. You need practice in turning your neck and looking at the big 3D picture and building a mental map of where everything is. For parking in tight spaces, cameras and ultrasonic parking sensors can help, but you still need to use your eyes to spot all the obstacles and understand the 3D sizes of the objects and spaces.
Actually, I don't think many people do reverse into walls, clip cars etc. Most of the parking lot accidents seem to be when people are parked and they open their doors into the car alongside them! That is probably followed by people who accelerated when they intended to brake! There are a few people who regularly use their bumpers to judge distances, but the car manufacturers are required by law to produce bumpers that do not fall apart in minor parking lot bumps - as long as your impact into a wall or someone else's bumper is under 3mph then you should be OK.
That said, there is a market for this type of product and I haven't seen any cases of them being the cause of an accident. People using phones, messing about with their radios /songs, speeding among a plathora of other issues seem far more pressing than a reversing camera. I would have also thought one wanting to have a dash cam is generally an indication of wanting to drive correctly /better as it is just as much evidence against you as it is for you..
You can't pass responsibility to the camera, the driver is always responsible, so if a driver uses a camera and causes an accident, the camera will never be reported as being the cause.
A coleague who has driven for 10 years recently scratched the side of a brand new van reversing against a concrete pillar and he certainly had mirrors? I'm sure you don't want that to be your car, yet it happens all the time.
Would a camera have helped? Almost certainly not, maybe he should have got out of his seat and walked around the van to check where all the concrete pillars where before reversing into them.
In terms of the "kid" example you presented, compared to how you are supposed to reverse and how most expierenced drivers reverse (that I've seen), the sheer difference in speed alone I would be inclined to say unless this kid is a new born baby that was placed under my wheels, they'd be fine even if I did glue my eyes to the reversing camera!
Going too slowly isn't good, it makes it more difficult to maintain an accurate mental map of where everything is and provides more time for what you can't see to change, such as the kitten walking behind your wheel. Our short term memory only lasts a few seconds, so if I'm reversing up a single track road then I prefer to reverse at 20mph than 5mph since then I have 4x more road in my short term memory map, so I know what is happening both behind and in front of the car instead of behind and only half way along the car, if I'm only doing 2mph then I have to keep stopping to check all around instead of looking where I'm going, if I'm doing 20mph then I can just drive.
Most people, even if they had full 360 degree cameras, would not use the cameras other than to check their blind spots - the places they can't otherwise see. And for a normal car the mirrors should cover most of the blind spots that can't be seen by turning your neck. For a van/truck without a rear view mirror then a "mirror cam" so that they can see directly behind is useful, although drivers have been doing perfectly well without them for many years!