Nanny State Scotland

Ok, so the new drink drive limit is to reduce the 20 drink related deaths on the roads. It will also result in an extra 35 people per week losing their license. I do not condone anyone driving over the limit and Im sure the pain of losing someone must be horrendous but its a bit sledge hammer to break a nut for me. Bit like the smoking ban where smokers are cast out into the wilderness. Probably a bad comparison but you get the jist or do you? Thoughts?