(NBC) -- A new survey from Mothers Against Drunk Driving shows many Americans don't realize the dangers of driving under the influence of marijuana.
Twenty-five percent of respondents said driving after using marijuana is 'not too concerning' or 'not at all concerning.'
Thirty-one percent of parents said they talked to their kids about drunk driving often, however, nearly fifty-percent had never discussed the dangers of driving high.
The study also shows uncertainties about the legalities of drugged driving.
Forty percent viewed it as a serious crime, twenty-seven percent say it's a minor traffic offense, and another 27-percent said they are unsure.