should blood-alcohol laws vary by age?

[Padfoot]

I can't wait until self-driving cars make laws like DUI/DWI moot.

I can only imagine the hilarity that would surely ensure from such an invention.  If you think drunk dialing is bad, just wait until your idiot ex or stupid frat boy buddy shows up at your house after drunk dialing your address into their self-driving car. 

[Padfoot]

Hopefully, by 2020, cars will have alcohol sensors installed with them that will disable the car, if it detects alcohol from the driver.

The thing I've never understood with those breath in to start the car things is if you can bypass that by having a passenger blow

I guess they figure that if you have a non-drunk passenger, the drunk guy isn't likely to be the one driving.

Seriously, any sober person that starts up a drunk's car for him deserves to be in an accident.  How stupid can you get.  If your friend is too drunk to get past the breathalyzer then you'd have to be a complete moron to do it for them and then let them drive you home.  Even if you aren't going in their car you should just offer them a ride home.