Also, car accidents are effectively instantaneous, then you're usually either dead or en route to a hospital within some exponentially distributed period of tim

Also, car accidents are effectively instantaneous, then you're usually either dead or en route to a hospital within some exponentially distributed period of time. Societal collapse can last anywhere from a week, in the event of a hurricane, to decades. Living self-sustained in relative comfort for a week is difficult, doing it for a month is much more difficult, and longer time periods approach impossibility very quickly.