Some callers to today's Liveline show on RTÉ Radio 1 said they didn't see a problem with having a few pints and driving home, especially if living in rural Ireland.
Other callers had lost children or a spouse to drink driving and are utterly opposed to the idea of having alcohol before sitting behind a wheel.
Transport Minister Shane Ross is proposing new legislation that would ban first-time offenders caught at the lower limit.
Yesterday, Kerry TD Danny Healy-Rae has said that someone drinking three glasses of Guinness will not cause fatalities on Irish roads.