> Will I, as a teetotaler, be ripping this out of my future car on sheer principle? Yes. >> also teetotalers can get tired >>> I don't understand how this is

> Will I, as a teetotaler, be ripping this out of my future car on sheer principle? Yes. >> also teetotalers can get tired >>> I don't understand how this is relevant to the point You mentioned that you are a teetotaler. This appears relevant to your point in that it assumes that this proposed module, acting as intended, would never prevent you from driving. mdp2021 points out that the first guideline targets impaired drivers (not drunk drivers) and would, by intention, prevent you from driving if you were tired enough to be impaired.