Forget pub crawls – increasing numbers of young people are replacing beer and wine with “mindful drinking” – where abstinence, not alcohol, is all the rage. A fifth of British adults under-25 are teetotal, according to the Office for National Statistics, and numbers are on the rise. Motivated by health and income concerns, this new generation are bucking the trend of their parents, and choosing to drink in moderation, or not at all. “Young people