This remains entirely true. That's part of why it's tough, expensive, and time consuming. People do dumb things. Much of safety is figuring out ways to lessen opportunities to do so, and mitigating damage when they manage it.
See, for example, aviation/medical safety, which take the approach that individuals making mistakes is an indictment of the system that permitted that mistake to occur. We engineer them away, as much as possible, with pretty great success overall.
> I knew that. I thought I deliberately misinterpret the sentence so you would be forced to clarify. You did to me several times in the other thread.
No, I still wanna know how you stop time between checking behind your car and getting in, starting it up, and backing out, so no kid/pet/whatever can run behind it in those 10-15 seconds.