People who have never smoked really have no valid opinion on how it effects driving ability . Also driving with 1 or 2 beverages would have little effect on me at all but it’s the folks that are f’n hammered that are too dumb to not drive that really end up having the higher risks of being involved with deadly crash . 16-34 year olds make up 67% of DUI crashes . Give me 5-6 shots of vodka and I’m going to be impulsive, reward seeking and pushing the limits not to mention very little nerves that may check my behavior , give me 5 bong hits and Jesus I’m not driving a car and if I did it would be in the slow lane , and using my directional like a half mile before the exit . I don’t smoke or take edibles and I barely ever drink but I have in the past and I prefer to drive with people who aren’t on any substances at all. However , I won’t hesitate to offend a drunk friend who had too much to drink that thinks they are taking me anywhere but I don’t see that much . Seems to me most folks I know drink but if they are Over 35 and aren’t alcoholics they know when they are good and when they are impaired for the most part . It’s mostly the younger folks involved in the DUI crashes or the older alcoholics that make the bad choices