tbh, I'm in favor of treating DUI more as a liability thing (ie, automatic fault in the case of an accident and multiplied damages) rather than a crime itself, but that's a pretty controversial position that I didn't want to bring into the debate. plus it has its own issues; liability is not much of a deterrent for someone with minimal assets and/or income.
Making DUI a liability thing is such a simple, clean and straightforward thing to do that I wish it worked.
But:
- for it to work people should estimate the risks correctly
- most people caught DUIing apparently are quite bad in understanding the risks involved