@Olivedal 1904 and xxialac, my "the festival on longer wants me to attend" is perhaps unfair - how about "the festival is skewing towards a twentysomething demographic". I think when I started going in 2011 it was skewing from late 30s to late 20s (which was me). The time I attended Flow in Finland, the headliners were Major Lazer, Pet Shop Boys and Florence and the Machine (nice blend of new, heritage and current imo). The undercard was much thinner than a Primavera but you know, there are only so many acts you can actually see in one day. I say that as someone who always (with hindsight as an older guy) utterly flogged myself at the Forum on 6 - 9 hour visits, treating the idea of taking time out at the food court as a bizarre diversion. While I am grateful for the mentions of the other festival that have been provided, they're a lot more avant garde or "heavy" then I would gravitate towards. For this summer, I'm going to see Pulp at Tramlines (undercard for that is like a Primavera of a decade ago) and hopefully Vampire Weekend at Victorious (undercard for that is much less tasteful hahha).