Every year, more than 6 million people attend live music events in the UK. Festivals are no longer about peace, love and LSD – they're commercial success stories. But have they kept any of their rebellious spirit, or are they just Instagram islands where anything goes?

Gen Yers are the first generation to have grown up with prescription stimulants following them through childhood, adolescence, and now, into adulthood. But the growing reliance on amphetamine usage in the workplace is at odds with the Gen Y obsession with staying healthy.

If you wanted to get your hands on an ounce of weed or a gram of coke, chances are you’d call a dealer, meet them in their car and do the deal in cash. But the days of waiting around in the cold for your next high are gone; whether legal or not, more and more people are ordering drugs online.

Kids under 18 have been called iGeneration, Gen Tech and "the swipe generation". But with teenagers using less drugs and drinking less alcohol – even though they're less likely to think these substances are harmful – perhaps a more fitting label might be "Generation Straight-Edge."