I'm just black pilled on cars at this point, between the insane level of subsidization they need in order to be viable along with the unhealthy lifestyle they mandate us to live cars are just the worst solution to our transportation problem
For safety features it would be relevant to look at deaths, injuries with lifelong consequences, recoverable injuries, and property damage. Then you can get a good picture as to the cost/benefit ratio.
That said, front sensors are ridiculously cheap right now. Looks like backup cameras have been mandated since May 2018.