Concern for inappropriate use of such video could well be addressed in the context of collective agreement negotiations when cameras are introduced.
Nonsense! Agreements and reassurances lasted all of 5 minutes in Court when the first Judge decided CVR tapes should be released!
Generally, it is just a HUD and front window view,
Flight recorders can now produce a simulated cockpit view showing movements of all instruments and control stick and rudder movements. What does a front window view achieve? I have watched many incidents from the point of view of the pilot, recreated from flight recorders, with control surface positions shown. A video adds nothing. A video prevents absolutely nothing. It does nothing to increase safety and nothing in accident prevention. Any potential suicide would simply block it. Why make airlines go through incredible expense installing this stuff for no increase in safety? What would achieve more would be giving that budget to the broke NHS so they could subsidise expensive drugs deemed 'too expensive' for terminal cases! The money could be far better spent elsewhere!