but I do worry about people driving while under the influence. It's a genuine issue that needs to be addressed, but I'm not claiming I have an answer of any kind. I'm under the impression that for some time after one has smoked pot, it still shows up in the bloodstream, (the urine also?) long after a person is impaired in any way, Alcohol is much more straightforward in this respect.
I am NOT claiming an increase in accidents because of legal marijuana. All I'm saying is that we need to be aware of a potential problem here. Responsible people won't drive while impaired. Alas, a lot of people are not responsible.
A virtue, so to speak, of alcohol is that it is easily tested for, and standards for impairment have been set. I will say I'm constantly surprised at the people who still drive while under the influence. I live in a state (NM) that has an enormous problem here. I have never lived in a state where people more or less regularly get on the interstate driving in the wrong direction because they're drunk, and cause a terrible accident. Especially when you consider how low the population is here.