Not drinking? You must be the designated driver
One in five Britons are teetotal - and young people are less likely to drink than any other age group.
What is driving change and whether it is likely to continue is unclear.
So, we asked young teetotallers in Scotland: Why don't you drink?
The film, featuring Allan Faulds and Derryn Balmer, was shot and edited by the BBC's Nick Sheridan.