I had a law professor once tell the class he personally felt that DUI laws were too severe for first-time offenders.
I think most people would be surprised to find out they have legally driven "drunk" before, because people typically aren't super intoxicated at a .08, and don't think they're intoxicated nearly enough to be past the limit. Many years back, I was at Best Buy and saw a rack of breathalyzers. Well, I'm a driver and I was a drinker who didn't ever want to get a DUI, so I bought one just to be cautious if I'm doubtful about my ability to drive (if you have to question it, you should not be driving anyway). It came with extra straws so I let other people use it, even customers at work. Everyone got a kick out of it.
There's a cool restaurant/bar I used to go to that makes fantastic cocktails. I went there and had just one cocktail, went to my car, and blew a .09. I knew their cocktails were strong, but wow. So I sat in my car, smoked a blunt to kill time, until my BAC was lower. I didn't really like to drive with it anywhere above a .05.
A lot of my big spending regulars have gotten DUIs before. It's pretty common for something that is so avoidable. My sister's boyfriend is an older guy she met at a strip club. He isn't a multimillionaire or anything, but he enjoys a salary comfortably above the 100K range, owns many cars, has an apartment and owns two other houses, etc. He is now a felon because of Michigan's 3rd DUI law. So is my mom, for the same reason.
I never want to get a DUI. I quit drinking in May, so at this point I have nothing to worry about. Even back when I was drinking (a lot), I had a moment where I could've gotten a DUI but didn't, so I learned my lesson pretty quickly and would just uber or lyft, or get a ride with a friend.