Not preaching here, because I've done my share of unsafe driving after drinking, but we're way too lenient on Drunk Driving in this country. In my jurisdiction, I've seen people on their 4th DUI walking without any jail time. It's a cultural thing. For some reason, it's just not considered serious unless somebody gets severely injured. Saw a guy on 2nd DUI who T-Boned a pregnant woman. Got house arrest and probation.
So not many people think about it until tragedy occurs, then everybody wonders why the laws are what they are.
If you blow over some number (.1, for example), it should be a mandatory 30 days in jail for 1st offense. 2nd offense should be 6 months, and 3rd offense should be a year, and you lose your license for 5 years. Another problem is people driving while suspended. Saw a guy here that was on his 6th DWS and he didn't do a day of jail.
In the end, our cultural permissiveness with DUI results in a lot of tragedy. Getting off my soap box here - just saying that a lot of this tragedy is preventable, and we will all still be able to have a good time - we'll just need to readjust our perspective. A few stories about cousin so-and-so and neighbor such-and-such doing real time for a DUI would have made an impact on me, and no doubt that spending a month in the slammer/big house/hoosegow/pokey would motivate most people to never risk it again.