The thing with doors for me is that I feel “trapped” when I have a door with no place for my hands besides a panel that lies flat (does not extend outward) from

The thing with doors for me is that I feel “trapped” when I have a door with no place for my hands besides a panel that lies flat (does not extend outward) from the door. The first time I saw one I was very confused: it seemed to me that I was against a wall that was painted as a door, but had no handles. It was surprising to me that specific example it was brought up as an example of good user interface design in my university UI class. Your account of the train incident is heart-breaking, but further solidifies my desire to have mandatory best practices that are evidence-based and have sufficient consensus for user interfaces that have harmful failure modes. On top of these best practices, there also needs to be a ramp plan from the any status quo interface that is nonconformant to the final version through as many intermediate designs as necessary to deal with ingrained user behaviour and ingrained user expectations.