See and avoid isn't good enough as sole strategy. It is high risk..We are not up to the task
NASA Human Factors Division at Ames Research Center, United Airlines and the Airline Pilots Association found that the normal cockpit duties during approach resulted in flight crews detecting another aircraft on a converging course less than 30% of the time. This detection rate plummeted to nearly zero when flight crews were given a late-minute change of runway instructions and/or report of a meteorological change that required their attention
https://aviationweek.com/forum/busin...754aafae042ae0