There is a mix of people but the majority of younger festival goers are not from a council in estate in Plymouth (who are perhaps doing the jobs some believe to be beneath what their children should be doing), working in Tesco, flipping burgers.
They are the sons daughters of wealthy people, they are the Hunter Welly brigade
My DC are from Plymouth; we didn't live on a council estate, just in an ordinary semi in an ordinary road; neither do any of us own Hunter Wellies. They did pay their way through college and university working in supermarkets, waiting on tables etc.
They also went to Glastonbury (not this year though).