My impression was that drink driving is fairly uncommon and is frowned upon socially in the UK these days, obviously there will be exceptions and I can imagine

My impression was that drink driving is fairly uncommon and is frowned upon socially in the UK these days, obviously there will be exceptions and I can imagine in remote places where the risk of being stopped is very low, this still happens frequently. That said, I live in London so don’t drive regularly so I could be way off the mark, but I’d be surprised if drinking over the limit (>1 pint I guess?) was a common thing.