> It's still beyond me why we don't just make the penalty for driving under the influence of drugs or alcohol 5yrs in prison? Because your idea has a shaky pre

> It's still beyond me why we don't just make the penalty for driving under the influence of drugs or alcohol 5yrs in prison? Because your idea has a shaky premise: it relies on an abstract thoughts ("I could get caught, and I could go to jail") deterring people who in many cases lack the judgement (at the time, at least) to be deterred. After that, all that's left is the idea these people are too dangerous to be free; but that fails on reasonableness (we have a way higher bar for that) and cost grounds.