kat_anders they just dont think they need to be bothered as nothing will ever happen to them
Or they think they have the amount they drink under control, staying under the legal limit (most countries do not have a 0.00% limit).
For that reason I am very much in favour of 0.01% rules (not 0.00% because even most fruit juices contain a very tiny amount of ethanol and you don't want people to be in trouble legally for drinking fruit juice.
But 0.01% is low enough, that you cannot even drink half a glass of beer. So no way to try to intentionally drink alcohol yet stay under the limit.