You are making an assumption that masks are a major preventer of transmission. I think you are giving them more credit than they deserve.Of course we are still going to be opening everything up before the majority of ‘gig-goers’ and those who work in venues have been double-vaccinated. Being younger and with the ‘I am invincible’ thinking of youth, I suspect many if not most will simply decide to take a chance and go to the gig - it’s their prerogative - their choice.
But for those who work in the venues and have not been double vaccinated - well they have to make the choice of work and income and taking a risk to their health, or turning the work down to protect their health and risk losing future work. I am not sure that that is a fair choice. I know what my son will feel forced to do - and that is work carrying the health risk.
Same choice and risk assessment as those (largely under 30) working in restaurants and bars will have to make unless masks are made a condition of entry.
My daughter is 18, got her first jab 2 days after her age group was called forward. Her second is mid Aug. That's the youngest group being done by then, bearing in mind they are largely unaffected by it. Those in their mid 20's and older should be done well before then and are still largely unaffected. Anyone vulnerable will have long been double jabbed.
I'm struggling to understand your view here. You have been wanting venues, gigs etc to be open so that your son can work again. Now it is happening you don't seem to want it. It's confusing.