Why do you think that the penalties you propose will drive a better change in behavior than this simple and effective habit they're suggesting to drivers? What

Why do you think that the penalties you propose will drive a better change in behavior than this simple and effective habit they're suggesting to drivers? What behavioral change do you expect to result from your proposal and how is it better than getting people to start a habit that will cause them to automatically check behind them? By what mechanism do you believe that punishing unintentional behavior will drive positive changes?