For from being the superficial, social media-obsessed narcissists that so many publications, and people, try to pretend they are twenty-somethings are actuallyy sensible. The average twenty-something earns £19,186.40 a year, has savings of £2,543 and chooses NOT to go clubbing, according to new research. The Nationwide Savings study of ‘Generation Sensible’ shows 65 per cent …