My office is a few blocks away. Saw lots of youthful people going to Lolla Thursday and Friday. None seemed to have a worry about masks or social distancing.You can watch it live on HULU.
The audience is supposed to be vaccinated or tested......but I think "social distancing" fatigue has set it. The young see it as a small risk worth taking. You just have to see their faces to see how happy and carefree they feel getting to the festival.