The poor attitude of the older drivers - as mentioned by
@jonny jeez in the OP - strikes a chord with me.
Years ago I passed a breathalyser after having a couple of pints.
When I took my driving docs into the nick a few days later, there was an inspector there who I know reasonably well.
From his experience, he said there are three attitudes to drink driving.
The young ones see it as a bad thing and generally don't do it.
The middle aged - like me and the copper - will sometimes drive after having a couple, but feel slightly ashamed of themselves afterwards.
A significant number of older drivers see drink driving laws as pointless and a restriction on their liberty.
If caught, they moan and whine, despite being the architects of their own misfortune.
The copper said some offend again, almost as if to cock a snook at authority.