Please, tell me how many times people have smoked weed and driven their car recklessly and ran over people or gotten into car wrecks that even hurt/harmed others ? Now let's compare that to drunk drivers who kill multiple every year due to being heavily intoxicated while driving. Please don't be stupid and naive. The fact that smoking and driving is even considered to be a DUI is borderline bullshit. It does not affect your senses enough to impair you the same way alcohol or prescription drugs would. For every one case that someone was driving wrecklessly on marijuana ALONE, you'll find 20-30 cases where people were driving wrecklessly while being heavily drunk or on prescription medication.