Why don't cars made for the US, and some other countries, have options such as dash-cam?

Asked by msh (4270) February 7th, 2016 from iPhone

Many European and Eastern Block countries-clear on over to many Pacific nations, have dashcams as a purchase option, or there exists a more commonly available product market for such. Common sense for increased driver safety and behavior as presented. Motor scooters and larger motorcycles regularly have such camera options available also.
The more-recent brillant meteor strikes have been recorded on such devices located on vehicle dashboards. The tragic plane accident which killed passengers as it crashed onto a highway was captured on such a dashcam, the images recorded were used by officials as they pieced together the crash timeline while investigating the accident.
Insurance Industry studies note the decline of lawsuit claims relating to automobiles in some heavily trafficked foreign city areas where dash-cams are prevalent.
One option which is available from some manufacturers of the product, tout that the current increase of ‘Road Rage’ and other questionable driver interactions, had a dramatic drop in the number of occurrences with the dashcam option. (Should one wish to research the available statistical data outside of the sales aspect.)
Insurance rates could then offer lower premium rates and therefore make more-affordable insurance available for many illegally uninsured drivers on the roads today. Long range implications might make the enforcement of various laws towards bad drivers and their possible negligence, easier to prosecute. Eye witness accounts would not involve the often difficult task of providing evidence in legal recourse.
So why are so many without such a device or option to have included in new vehicle purchases?
Should there be consorted effort taken towards higher availability of these products in today’s motor vehicles?