People driving at .08 aren’t the problem.
I’ve done drunk driving enforcement ride-alongs and can never remember picking up anyone under .10. .05 might scare some folks into avoiding that third beer, but it won’t do anything to stop the serious drunks who get blotto, then drive the wrong way on the freeway until they hit someone head on.
I avoid drinking any time I got out to a restuarant. If you eat dinner with your family, both adults could likely have 2 glasses of wine. Thay will put anyone over the .08 limit. If I got pulled over on the way home, they could get me for a DUI. .05 would such take someone like me who doesn’t to access wheb they are having dinner with their family from not having any alcohol. I think restuarants would have unnecessary lost revenue. At least the streets will be safer. There is no price to high when it comes to safety, even when it doesn’t do squat to alleviate the problem.