Nope. Poor breaking behaviour doesn't cause crashes, people not keeping a safe distance causes crashes.
Nope. What causes crashes is hunks of metal ramming into other hunks of metal. It would be complicated except that it's not. We choose to ascribe "cause" to other events that precede the ramming behavior, but it's really arbitrary.
For example, it's widely understood that driving cars is *dangerous* and yet we don't ascribe standard risk factors for *driving at all*.
Skiing is inherently dangerous. In order to use a ski slope, I have to acknowledge this risk. Why aren't car manufacturers covered with a similar legal conract?