Shock horror. Festivals are expensive and only middle aged, middle class people can afford it.
http://www.factmag.com/2013/05/16/study-60-of-young-people-priced-out-of-festivals-average-festival-costs-420
Which explains how white, middle aged and middle class, Glastonbury can appear to be. (sez, the balding old git).
Having said that, festival crowds are predominately white, middle class and 30-something and really don't reflect multi-cultural urban Britain. That's obviously a generalisation but largely true.
Earlier this year I was trying to find some listings for free or very cheap festivals. Anyone got a good list? Bring back the 70s and Windsor, Stonehenge, Rivington, eh!
[1] Ice cold cans of coke with your own rum are much much cheaper than festival beer.
[2] 2 Years ago at Glastonbury and we find ourselves next to the "Glamping Party from Essex Hell". 3 giant tents and a gazebo that they just walked away from at the end. Hairspray and Mirrors. And no concept of personal space, I climbed out of my tent one morning and had to push past the guy asleep in a garden chair a couple of feet from my tent. Hey ho.